Ok...ummmm...not getting the point of this...
Avatar was a movie based on how some things are different in 2 ways:
1. How the government wants to take it over because its they want to Americanize it and they believe they can do whatever they want.
2. How different they are and what you can learn from them and their ways of living.

Basically the movie is promoting the quote "Never judge a book by its cover."
Not to mention in inspires love between to species (Keyword: Species) not races.
And you are correct about the suicidal thing...lol.
I felt so overwhelm about Pandora that I couldn't stop thinking about it, until I drew my own ubber looking Avatar myself.
Racist, no. Alienation, yes.