Why has right wing racism/bigotry been so prevalent?

Please don’t cheapen this country to blame on race. Whenever people use common sense and the liberals don’t like it that brands them as racist. God forbid we start using common sense for polices. It would end most of the welfare that buys so many votes for the liberals. I am African decent but I need no hand me downs, I will work for all I get. And don’t want an advantage that makes people think I don’t deserve it because a couple hundred years ago my ancestors were slaves like so many races in history. If anything we should thank the white people for hundreds of thousands of them dying to free us, like nothing done before it. In this day in age most of the form of racism is on the other side of the aisle ie NAACP, black churches, united ***** college fund, association for minorities the list can go on all day long. How can we ever move forward as a country when people feel the need to segregate? Yes my fellow black people, it is you who now participate in most of the racism by definition