Americans, and people living in American colonies, also have first-hand experience with American imperialism. I'm not sure why you think your experience trounces theirs?
Why are "victims of communism" allowed to generalize from their experience, while "victims of capitalism" are not?
And before the nitpicking starts, I'm well aware that monied interests can influence democratic politics. That does not make an economic system a political system. It would be like calling democracy an economic system.