I don't believe that all hate can only stem from exploitation of the weak by the strong. I think that it can also come out of deeply held theological and philosophical beliefs. As someone who believes in God, I can safely say that there are plenty of religious folk out there who hate and oppress because they really do believe that it is what their god tells them to do. Look at Westboro Baptist Church, full of white, upper-class attorneys, whom I do not believe have experienced systematic oppression, and yet their religious beliefs lead them to hate and do terrible things. Their interpretations of the Bible are wrong, but still, it is their belief that causes their hate.