In OTL there was science to support a master race. Entire Empires had been built upon the belief that the "white" race was better because of what it did to society, and the influence it had on culture.
Science is well and good, but given enough time I can fake science. Did you know watching Nascar can increase your chances of heart disease by 61.7%? Give me enough time, and enough studies and I can prove it does.
What I am asking for is the dominate theory that white people are the best, to switch to blacks. The challenge here is making such a thing occur. I don't think anyone on this board can do.