I'm talking about the vocal thing, in particular, in my last. Did I say caucasians couldn't dance?...couldn't break dance, etc? Maybe cos the young black kids in the early 80s were used to seeing their family dance, they danced, etc, etc - vs caucasians not having the same experience. I think that's actually the case - BUT, for them it goes back a time-immemorial. They're adapted. I have no idea about the relation of break dance moves to martial arts. Could be.
But let's go all way on this and bring it down to pure physical attributes: Blacks, both genders, generally have more booty. Now, this is arguably an aesthetic sensitivity I'm speaking of, but you have to admit that white boys more often than not, and despite their maybe intensely working legs in the gym, don't have no ass. (Due to my Italian blood, as it surely wasn't from the Irish, English, Scotch side, I'm fortunate not to be in this camp.) If it were me, and I was offered a way to augment it, I would...cos not even guys should be booty-less.