I speak for the Fuzzies!
I see we have few SF fans writing today. who would recognise H Beam Piper's Fuzzy stories, Anne McCaffrey's Pern, Ursula le Guin's Word for World is Forest, Robert Heinlein's Starship Troopers and other books, and Roger Dean's art and Chris Foss's and on and on I could go. James Cameron copied from the best and made a good job. So there.
I didn't think Chinese oppression as I watched it, I thought Europeans dealing with Native Americans. This reminds me: for a storyline, Failblog shows a description of Disney's Pocahontas with all the names crossed out and Avatar equivalents put in their places. Pocahontas was awful, but Avatar isn't despite the neat fit.
What about an IT angle? The 3D kit the invading forces worked with actually looked useful, unlike the oversexed crap that CSI Miami uses and pretends is nowadays stuff.