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human
CMV: The fall of the Jedi was preventable and Masters Yoda and Windu failed at every opportunity to do so

I've been rewatching the Star Wars movies with the idea of seeing how right Qui Gon Jinn was in insising Anakin was the chosen one, and specifically how many times that was made obvious to the Jedi council. It seems like this was a huge miss by them and that the fall of the Jedi was entirely preventable. I think this mostly can be seen by the events of Attack of the Clones, but every prequel holds some moments where the Jedi could have made different choices that would have influenced Anakin differently.

So first I want to note why I'm including Mace Windu. I love Mace Windu, I think Samuel Jackson was one of the best actors to portray a Jedi, but ultimately, Mace Windu is the second-in-command of the Jedi order and from this post, runs the Jedi council meetings. Also, the scene where Anakin finally decides to turn on the Jedi, he does so by kicking Master Windu out a window. I think Master Windu is meant to represent the Jedi Council, while Master Yoda is meant to represent the Jedi as a whole. Most of Anakin's hatred of the Jedi seems to stem from his feelings of mistreatment by the council, which he seems to have personified in Mace Windu.

So let's go back to why I think Master Windu and Yoda both failed Anakin in chronological order.

 \- Anakin did not voluntarily join the Jedi. He was made the prize in a gamble between Watto and Qui-Gon Jinn who intended to present him to the Jedi Council as the chosen one. Moving from slavery to the Jedi order, especially at the cost of seeing his mother, the only person in the universe he knows cares for him, likely did not feel like a huge upgrade to him. I feel like it's pretty easy to say that being a Jedi was not Anakin's choice, and I don't think it was ever shown that he's very appreciative of the life he has. This seems most obvious in Attack of the Clones, where he spends most of his time he was meant to be protecting Padme bitching about how underappreciated he is.

 \- With that said, the Jedi almost immediately decided to turn Anakin away, to his face. Qui-Gon, Obi-Wan and Anakin meet before the council after Anakin had his life altered without his consent only to be turned down by the Jedi Council. Mace Windu is the one to inform them, and he will be the one to break the bad news of the council's judgement for several other events in Anakin's life.

 \- Now, at the time the Jedi didn't see any reason to believe Anakin was the chosen one. Qui-Gon had known disagreements over interpretations of the Force and on top of that, there were no known Sith operating in the galaxy, so finding a chosen one to destroy them seemed silly. Anakin is there to destroy no one? Yet, by the end of the film it should be obvious that Qui-Gon was right. Darth Maul is not only here, he killed Qui-Gon. Refusing Obi-Wan's request to train Anakin was probably the right move, this would be Obi-Wan's first (and seems to be only?) padawan learner so there's nothing to go by how successful he is as a teacher. Yoda should have taken that on himself (though Obi-Wan did state he was going to do it anyway even if the council refused)

 \- The Jedi Council as a whole probably take the L for this one, but after the assassination attempt on Padme at the beginning of Attack of the Clones, Obi-Wan and Anakin are sent as backup for her. She specifically notes that Count Dooku is likely behind the attack, which Ki-Adi Mundi states is ridiculous and Mace Windu agrees. They refuse to consider the possibility a fallen Jedi could turn to the dark side, even with the Sith known to be roaming for 10 years at this point.

 \- Another attempt is made on Padme's life that Obi-Wan follows, leading to a trail that ends up with him on Kamino finding out the Jedi order placed an order for a million clone troopers around the time of the Phantom Menace and that its original template is a bounty hunter who was likely commissioned for Padme's murder, which he passes on to the Jedi Council. At this point the Jedi know two things: There is an army of clones they did not place an order for that is waiting for them and its original template attempted to murder a Senator who wants to stop the coming war. Worse, Jango informs Obi-Wan his employer is "a man called Tyrannus" who we know is Count Dooku, confirming Padme's theory (though Obi-Wan doesn't know that). Jango flees Kamino almost immediately after this confrontation which Obi-Wan follows to find Count Dooku conspiring with the trade federation and other business leaders. That should have been confirmation of Padme's theory for him. So what does Obi-Wan do? Tell the Jedi council that Padme's fears were true and that Count Dooku is possibly a Sith and this clone army is the creation of the dark side? No, he states that Nute Gunray, the antagonist from the first movie, likely did it. Nute states to Count Dooku (with Obi-Wan overhearing) he wants Padme dead which COUNT DOOKU SAYS HE WILL ARRANGE! This was a giant L by Obi-Wan, but this is followed up further by his capture and Count Dooku laying out the whole plot (stating that the Senate is under the control of a Sith Lord, basically saying in neon letters "The Supreme Chancellor is a Sith") which Obi-Wan refuses to believe. Another L for Obi-Wan, though I don't fault him there.

 \- While the Senate debates on whether they should create an army, Yoda and Master Windu, who at the moment know that Jango Fett is conspiring with the Separatists and is the original template for their new clone army, sit and watch the proceedings and do not intervene. When Jar-Jar grants Palpatine the authority to unilaterally approve the army, all they do is shrug. There is OVERWHELMING evidence the clone troopers are evil at this point and it is readily available to them both. After the first battle on Geonosis, Yoda himself mentions the cloud of the dark side shrouds everything and that the Clone Wars have begun. That should have been a clue for him they unleashed something terrible. This was likely the point of no return for the Jedi, as I'm not sure what they do about it at this point.

 \- Anakin obviously fully falls in Episode 3, but I don't think it was guaranteed to happen yet. Order 66 will still likely go out no matter what Anakin does, but after Palpatine had Anakin drop the axe on Dooku, he's currently operating without a primary enforcer. He now needs Anakin. In order to press his thumb down on both Anakin and the Jedi order, Palpatine makes the highly unusual move to appoint his personal representative to the Jedi Council, something the Jedi order does not do. So, do they throw a fit and say the supreme chancellor is abusing his emergency powers to interfere in the work of the Jedi? No, they spurn Anakin on a recorded meeting and grant him his position on the council as requested, but don't grant him the traditional title for members of the council of Master. This was clearly all Anakin cared about: the respect of being a Jedi Master. The fact he was a full member of the council with sway and influence seemed unimportant to him at best. Again, Master Windu is the one to inform Anakin that they will not make him a master and he also sternly tells him to take a seat when Anakin loses his chill over this. I consider this a failure because Master Windu and Yoda have both noted, in every movie so far, that they don't fully trust Anakin's hold on his own feelings. They should have known Anakin would not appreciate that and inform him in a tactful way: such as stating clearly that they think Palpatine is using him and this move is his way of gaining leverage on both him and the Jedi. Instead they send Obi-Wan to clean up their mess later, which Anakin doesn't seem to take well.

 \- Furthermore, the Jedi mention that they don't trust Palpatine at all, but worse, they've just given the supposed chosen one to be his personal Jedi and eyes on the council. Now Palpatine has unlimited access to Anakin and can tempt him with his dark powers all he wishes. It is almost immediately following Anakin's spurning by the Jedi Council that Palpatine offers to teach him to reverse death with the dark side. There was a huge number of reasons to simply deny Palpatine's request, especially given who he requested. Anakin should have been a closely guarded resource of theirs, Palpatine himself says so ("they need you more than you know, Anakin")

 \- Now from here, shit hits the fan. Anakin lets Mace Windu know that Palpatine knows the dark side who immediately goes not to arrest him, but to murder him ("He's too dangerous to be left alive"). Anakin stated earlier in the movie he didn't like having to execute Dooku, but it wasn't a Jedi telling him to do that one and he immediately states it's "not the Jedi way" before doing so, but now Master Windu is going to go do that very thing with no one telling him he has to. Anakin probably saw this going down in his head like Palpatine going quietly to jail and he could learn how to save Padme from there. Once he realized that only one of them was leaving that room alive, Anakin chose to save the one he thought could save his family, who he knew the Jedi would not approve of.

 \- This is Anakin's point of no return, though I still feel like Padme made some extremely convincing points in the very next scene that made a life of quiet exile on Naboo raising Luke and Leia seem nice. Anakin was a fool for not taking her up on that deal. Instead, he focuses selfishly on himself and his own needs and at this point can't see anyone else's point of view. He's now gone on to be Darth Vader.

There are two key elements to Palpatine's plan succeeding: successfully turning Anakin to the dark side (he had been cultivating him for 13 years at this point) and the Jedi willingly leading the clone troopers into battle so that they can turn on them.  I don't know that the Jedi needed Anakin, but Palpatine needed the clones and the Jedi had plenty of evidence and time to stop that, and they didn't. And when that part of the plan succeeded, the Jedi shepherd the other part of Palpatine's plan straight to him, signing their own death warrants as now Palpatine had everything he needed.

I see in quite a few places that most people feel that the fall of the Jedi was inevitable. I don't agree. Had Master Yoda and Master Windu relied on more than the force, such as common sense and their own instincts, they likely could have been a better influence on Anakin and made his make-or-break moment go their way. But most of all, they could have used deductive reasoning to determine that the clones are bad ju-ju for them and they didn't. The force didn't tell them to.
gpt
This isn’t really a ‘view’ - it’s just true.

It’s poorly explained in the movies themselves but elaborated on in the extended universe: the Jedi’s power was waning.  

They had become arrogant and complacent with the status quo, and in that environment they failed to act on the growing separatist threat and sith presence.

The fall of the Jedi was preventable at a meta/systemic level, not so so much by any one particular person.