I think that believing that Adam and Eve were white is a misconception.  Why do you say that since it was in the Middle East, they must've been white?  Do white people live there now?  No.\nAnd it is also wrong to say that evolution teaches that a common ancestor is from Africa.   From what I gathered, remember Pangea?  When all the continents were supposedly connected?  The common ancestor lived in Pangea, in the region that is now Africa, not necessarily in Africa as we know it now.\nSo, no, I don't think that racism plays a part, I think it is simply religious fanatacism.  Also, take note that some of the strongest churches in the US, especially in the Southern US, are black churches.  It is a trend that all heavily religious people dismiss evolution, and blacks, I believe, are no exception.