Racism sucks. And yet anybody can be guilty of it. I have met some black persons who are horribly racist. I have met Jews who are, well, not racist, exactly, since we are not a race, but at least ethnocentric to a degree that makes me leery.
I think as long as you have a human society that divides itself into races and ethnic groups, you going to have racism and ethnocentricism, and the like. It is unfortunate, but it is also reality. As long as you can get everybody to NOT kill each other, I'd say you're doing pretty well.