system
Given the following post, respond as if you're commenting on Reddit:
human
[Avatar: Legend of Korra] How would things have played out if Aang was still the Avatar during the events of LoK?

Let’s assume that being in the ice for 100 years hadn’t decreased Aang’s lifespan, and he was still alive and kicking during the events of LoK. How would things have changed?
gpt
For the most part, Korra's enemies would have chosen not to do what they did, or at least waited until Aang passed away. 

Amon was raised on his father's stories of the avatar's power, and would have been too wary of Aang to start an uprising during his lifetime. Aang would have been easily able to reverse Amon's bloodbending trick, and thus expose his lie with little effort. 

The Red Lotus might not have even formed if Aang hadn't died so (relatively) early. Their founder was disgusted at how the society had become "the avatar's bodyguards" while Korra was young, and eventually its members became dedicated to intentionally disrupting balance that the avatar tried to uphold. But if Aang survived a few decades more, that initial split would not have occurred. And without the Red Lotus, the Earth Kingdom would not have crumbled. So Kuvira wouldn't have had any reason to leave and become a dictator. 

The only outlier is Unalaq. He was already a fanatic about harmonic convergence and creating a dark avatar with Vaatu. The water tribe civil war might not have happened without Korra, since she was being manipulated by Unalaq the entire time as part of his bigger plans. If anything, Raava would have communicated with Aang directly as harmonic convergence approached, and he would have stopped Unalaq before Vaatu could be released.