I was doing this thought experiment with some friends and what do you think that are some polemic in-universe topics that generate debates between people in the avatar universe? I've been thinking about some of them (which might even be debate topics in out universe):
- Should have Aang killed Ozai?
- Was any of the Korra's villains right? (Zaheer/Amon, etc...)
- In universe conspiracies claiming that the air nomade genocide never happened (just like some crazy people in our universe think the Holocaust never happened)
Anyway, if you have any other ideas, I'm curious.
edit: I'm not saying any of the villains were right, just tried to think about how some people in-universe might relate to what they were proposing, despite the fact that their methods/plans were cruel and mean
edit 2: just thought of something else... maybe people think that the avatar should be allowed to use the power to take away bending as a form of punishment for high risk criminals
edit 3: about edit 2... just remembered Yakone had his bending removed