And about the Na'Vi. Like most fifth graders, Cameron endows them with a nobility and honor that he thinks the Native Americans possessed. Fine, whatever. What is important is that he presents an "idealized" society. A society based on respect for the planet and the creatures that inhabit it. In one scene, Neytiri kills some freaky Doberman looking thing and then cries about it later. She had to kill it because it was attacking Jake. To save one life, that she deemed more important, she took another.
The entire Na'Vi society is based on a code of honor and achievement. The members must "prove" themselves to the tribe by accomplishing things like riding dragons. When Jake tames the big mofo dragon, a great accomplishment, he is rewarded by being made the leader of the tribe despite the fact that Tsu'tey was next in line to be chief.
Cameron's idealized society is one based on individual achievement. When individuals take great risks, they are often rewarded over people who have seniority. Fairness is determined by accomplishments, not by rules. There are winners and there are losers amongst the Na'Vi and they manage to be a happy society. Oh, and when they are forced, they kill to protect themselves and their loved ones, an action that they don't take lightly. They have honor and nobility. They have strong traditions.
Sounds good to me. In fact, it sounds a lot like the conservative view of what America stands for. I'm in. Hey, Cameron, beers at my house, I TiVo'ed Glenn Beck for you.