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human
[Deadpool 2] How badly did Deadpool fuck up his own timeline? [spoilers]

So, Deadpool goes back in time and kills the man that kills his girlfriend, thus technically unraveling everything, right? She doesn't die and so he doesn't get depressed enough to blow himself up, to meet Colossus, become an X-Man (In Training), going to jail, etc. Right? Cable comes to the past, kills the kid and leaves? But then why doesn't Deadpool have his entire timeline unraveled or fixed or... SOMETHING!
gpt
In Deadpool’s Defense, the xmen universe timeline was already fucked up during the events of Days if Future Past. That event severely fractured the X-men timeline so you could probably do a running total of timelines in the movies.

1. The X-men trilogy timeline


2. The X men origins wolverine timeline where Deadpool turns into Scott Adkins and Emma frost is a kid


3. The Logan timeline which seems like a the X-men trilogy timeline where the sentinels never happened so Logan never went back in time


4. The Deadpool timeline which seems linked to the first class timeline


5. Cable’s hell world timeline that he tried to fix


6. The legion tv series timeline which may or may not be any of the aforementioned timelines


7. The Gifted tv series timeline which definitely isn’t part of any of the timelines above

And then any other timeline created by Deadpool’s fuckery. Time is very strange in the X-men universe and it seems that rather than the timeline sorting itself out, it just unravels and just sort of goes it’s own way so that might be why Deadpool can get away with all sorts of time travel shenanigans.