Well, to me part of your point seemed to be that a lot of what we call racism has roots in classism, rather than in beliefs about inherent differences between races.

My point is that the resulting behaviors and discrimination can still be racist, even if they don't have their ultimate roots in racism itself.

From your link:

> also : behavior or attitudes that reflect and foster this belief : racial discrimination or prejudice

> : the systemic oppression of a racial group to the social, economic, and political advantage of another

Edit: Anyway, I do recognize that the distinction you're pointing out does have implications for the best way to address the problems.