Considering most African Americans have family who were slaves they probably are more androgenic because I read somewhere that the most muscular and ones with best genes were kept around for hard labour so androgenic genes were kept around while the bad genes were erased. But even just blacks overall do seem to be more androgenic.
Very true. That era is a good example of human mediated natural selection. Not only were those with the best genetics sold into slavery, the conditions on the boats were so bad that many died, leaving only the best of the best.