Slavoj Zizek, “Return of the Natives”, From New Statesman:

Avatar’s fidelity to the old formula of creating a couple, its full trust in fantasy, and its story of a white man marrying the aboriginal princess and becoming king, make it ideologically a rather conservative, old-fashioned film. Its technical brilliance serves to cover up this basic conservatism. It is easy to discover, beneath the politically correct themes (an honest white guy siding with ecologically sound aborigines against the “military-industrial complex” of the imperialist invaders), an array of brutal racist motifs: a paraplegic outcast from earth is good enough to get the hand of a beautiful local princess, and to help the natives win the decisive battle. The film teaches us that the only choice the aborigines have is to be saved by the human beings or to be destroyed by them. In other words, they can choose either to be the victim of imperialist reality, or to play their allotted role in the white man’s fantasy.

[…]

The film enables us to practise a typical ideological division: sympathising with the idealised aborigines while rejecting their actual struggle. The same people who enjoy the film and admire its aboriginal rebels would in all probability turn away in horror from the Naxalites, dismissing them as murderous terrorists. The true avatar is thus Avatar itself – the film substituting for reality.

Thanks again to Mat A. for bringing this to my attention.