America's been around a lot longer than the beginning of the Iraq war. We nearly eradicated the Native Americans to gain their land, we've placed illegitimate governments in Honduras and Guatemala, nearly eradicating the Mayan population for the sake of our own economic exploitation of the area, and so on. And honestly, most people backed the Iraq war specifically because they hated middle eastern people, so I don't think calling it a genocide would be much of a stretch; if the area's population were small enough to easily suppress the way the Mayans were, we'd have probably just focused on that strategy again in order to secure the cheap oil we were after.