hunch, I Googled the genetic mutation called, "polydactyly" or a sixth toe. Son of a gun! It too is not distributed equally across races! It turns out that it's more common among blacks! Who knew? Since you're now, albeit in a shuffly manner, answering my questions, can you name anything genetically that is distributed among members of different racial groups equally?
Final one: da ya think that accepting that different racial groups have different percentages of members who are predisposed to antisocial behavior might have some serious implications for social policy?