Quote from spect8or:
There have, have there? Such as...what? Environment? Socioeconomic status? The same tired old list that prompted researchers to look at inherited traits in the first place? Something else? I'd love to hear it.
Nothing tired about that list. Perhaps you're tired of hearing it? Oh, don't leave out the relative deprivation hypothesis, and the "cheater detection" instinct. They also contribute usefully to explaining the behavior of some in otherwise "plentiful" circumstances. First observed in the lower primates, iirc, it is now being observed in other relatively intelligent species, like some of the birds. Does it make it right? Of course not. At any rate, I'll of course grant there is a genetic component to behavior.
And your order of occurence is plain wrong. Early scientists looked only at inherited traits, like the shape of people's skull. When those failed to hold any predictive power, other factors, such as those on your list, came into examination.