My opinion on avatar/avatar 2 is that both sides are assholes and deserve a visit from the Steiner scout lance
Personally I am siding with the humans since they are:
a) My own species.
b) Are actually trying to do what a healthy interstellar species should do.Namely, expand and advance technologically.
c) Not manipulated by a gigantic smart tree/magical whales that use them as defense/drones.
The allegories fall flat given the tech level, IMHO, and are just more leftoid guilt pushing a la Pocahontas/noble savage/environmentalist crap.
If any form of logic was present in this franchise then the humans would have just thrown big rocks at any cat smurf settlements that were a problem, then resumed excavation in the first film.
And that is just the military aspect of things.
I am pretty sure that at least some catsmurfs would have loved to gain access to more advanced tech and align themselves with the short, pale aliens in order to deal with the enemy tribe right next door, or get access to advance medicines and all the other tech humans have.
You know, like RL Pocahontas's father wanted to do.
And the tech gap between the Catsmurfs and the Humans is orders of magnitude larger than that between the European settlers and the Amerindians.
IMHO the cat smurfs were basically controlled by the other "bigger fish" in Pandora's ecology, like the matrix tree and perhaps those whales they "chat about their families with".
Also, if interstellar expeditions for mining and research are possible and as easy as described in the film then humanity should have a huge presence all over the solar system, with lots of habitats/extraction facilities, and frankly the magical mineral we saw in the movie should be something that could be extracted from other objects in the star system where Pandora was, dunno if it was Alpha Centauri.
Whatever his visuals, Cameron knows jack shit about history, or economics, or anything else besides copying other people's ideas and making flashy movies that showcase his diving fetish.