If the explicit goal of US intervention was to run Iraq from abroad dictatorially, that might be an argument, but since the explicit goal is to restore power to the Iraqi people through democratic institutions, the nice symmetry fails. You can argue that this will not happen or is not really the goal, but you are back to arguing subtext, not stated intention.
Was US sanctions against the South African regime imperialist interference? I don't buy it and I don't buy that if the SA government had started mass slaughter of the population rather than give up Apartheid that world military intervention would have been wrong.
The fact is that the US has rarely intervened in the world on behalf of democracy but this past decade has changed that record slightly, with Haiti to restore Aristide and in Kosovo, both imperfect but in my view better than the alternatives.
Saddam is not Allende or Ho or Nasser or basically anyone who the anti-imperial struggle once held up as worth defending. There are reasons to oppose the war against Iraq, especially how Bush wants to run it, but "anti-imperialism" sure doesn't do it for me. All it sounds like Buchanite isolationism.
-- Nathan Newman