It is intended to be taken quite seriously. It's why Trudy can refuse to bomb the home tree and get away with it (and be left free to jail break the scientists.): She didn't sign up for bombing natives, but to ferry scientists.
That is a good point, but that doesn't condone their previous actions. The film is about their present actions - it's quite clear that Sam Worthington's character, as a marine, is complicit in doing wrong. It's just that he - and Trudy - at one point wake up and cease doing that. Indeed, the idea that Venezuela 'was some mean bush' and implicitly a 'hellhole' is hardly congratulatory talk of two fellow liberators looking back on time well spent. In Avatar, we're repeating the sins we inflicted on our own world, both to the population and to the environment. And it's really, really not subtle about this viewpoint.
But, in reality, US soldiers are mercenaries for whatever corporate/political interests win out in determining government policy. Nothing they do has anything to do with defending the US or fighting for freedom.
Which is the point of the film. It provides an allegorical contrast, sure, and they're not
really American soldiers, but then again of course they are. So too were the Colonial Marines in Aliens, for that matter.
And Cameron as I've heard has publicly claimed that the story is about humanity in general, which is pompous nonsense, but makes the point again: DO NOT APPLY TO CURRENT EVENTS!
I think it'd be fairer to say it applies to
general events, which is why Cameron has made this claim. The Americans are not the first or even the most pervasive society to forcefully dominate and control native populations for their resources; among others the British did a damn fine job of it too (here in Ireland as well as all over the world).
Simply put, distilled to the basic narrative of natives being supplanted by more advanced people for an ulterior goal - that
is a universal story. That
has happened all over the world. Cameron draws some intentional analogies in the film, and it's true these are predominantly American - the conquest of the Native Americans and Iraq, with shades of Vietnam - but it's not something unique to the American experience.
Defining racism as the particular beliefs appropriate to a card-carrying Nazi does have polemical advantages. Arbitrarily close distinctions between chauvinism (which is both sexual and national,) and bigotry (which is both religious and racial,) merely serve to redefine phenomena out of existence. Jingoism, racism, bigotry, chauvinism, homophobia, they really are on a continuum, even if occasional individuals compartmentalize some exceptions in their personal lives.
They may be, but I simply seek to use words in the manner of what they mean. It's linguistic, not ideological. If you discriminate in a manner related to racism or evolved from racism but which is empathetically not racism, then dubbing it as racism really dilutes the meaning of that word overmuch. I have seen this happen to fascism and Stalinism and any other word you'd care to name, whenever a word is given an unbearably negative connotation it
inevitably broadens its scope to refer to as wide an umbrella as whatever current wag can give it.
And I won't stand for that.
Lastly, the notion that because Serbs are white somehow means that intervention into Kosovo isn't racist suggests a seriously perverted view of reality.
It's an example I got, funnily enough, from racists. I have followed a few American racist websites and they have an interestingly mixed view of American foreign policy; they're all for the War on Terror (to a point, anyway, they aren't Israel's biggest fans,
quelle surprise) but they're majorally pissed at Kosovo, which given their ideology is understandable.