I guess I'm like Roger Miller who used to say that he didn't have as many jokes as he thought he did.
I align myself with almost all researchers in assuming that anything we do is a composite of whatever genetic limitations were given to us by our parents and whatever kinds of environmental opportunities are available.
In the middle of the night, when you're ambiguously ethnic, like me, when you're brown, beige, mauve, siena, one of those lighter browns in the Crayola box. You have to be careful of the cops and robbers, because nobody's quite sure what you are, but everybody has assumptions.