Interesting study. Even in a world where there were no ethnic inequality or negative stereotypes I think a lot of people would still wind up with ethnic preferences. Black woman brushes past you as a child and from then on you find curly dark hair hot forever. Definitely the big trends are shaped by ethnic inequalities, but there are a lot of people who are exceptions to the big trends and still have this fetish or that. It’s all a crap shoot what experiences with various ethnicity (or just various physical traits) that we have in our sexual imprinting phase.