I’ve always been very reluctant to equate Kuvira to either Chaing or Mao. Part of the problem is that if you start looking for 1:1 historical analogies in fantasy worlds you end up developing tunnel vision you miss out on what the writer is actually trying to do with their setting. The other issue is that Bryke never really made it clear what Kuvira’s beliefs and ideology were beyond a few speeches and a handful of background details that don’t entirely fit together. Back when B4 was airing the revelation of the Earth Empire’s internment camps caused a stir in the fandom (at least among the Kuvira fans), since there was literally nothing in Kuvira’s backstory or behavior to explain why she would be an ethnic chauvinist. This old blog post took an interesting tack by discussing Kuvira’s context in the world history of Avatar and suggesting that she might be closer to Kemal Atatürk than any figure from modern Chinese history. (There’s also some neat discussion of the personal and political relationship between Kuvira and Suyin too!)
A piece I did for avatarfanzine - Children of the Earth zine, which if you pre-ordered it, should be getting it real soon. I wished Kuvira would’ve had a longer season to shine a lot more. She genuinely saw herself as the hero of the people.