And yet there are strong physiogenic correlations among the stereotypes of race. Whether they make enough difference to care about socially or politically is mo

And yet there are strong physiogenic correlations among the stereotypes of race. Whether they make enough difference to care about socially or politically is more of an aesthetic decision. ("I like your kind/I scorn your kind".) Mating/breeding ability is sort of a continental drift. Horses and donkeys can breed, as can lions and tigers. They are more strongly distinguished than Australian aboriginals and Swedes. Who knows how many generations it would take before we'd start to separate procreationally, if the "races" didn't like to share their genes around the edges of their territories. We forget we've had different species of human in the past. The bugbear is probably that if brain structure or function is in any way also correlated with the other traits (not caused, just correlated), or things like adrenaline production that might influence temper, then the whole superiority/inferiority thing all of a sudden has the possibility of legs. We've learned that redheads have different pain sensitivities, for example.