For example, who really cares what Mead thought, or the influence she might have once held? With the advent of genetic research, every one of the soft, subjective interpretive 'sciences' have essentially been rendered obsolete. Like other, pseudo- scientific fields like 'phrenology', it's a waste of time even entertaining the concepts that were once believed.
The real game has moved on to bio sciences. With the capability now available to splice, mix & match genes, it's only a matter of time where experiments can be performed that conclusively demonstrate hard wired triggers. This will be true not only for hair, eyes, skin and other physical traits, but IQ and behavioral tendencies associated with cognitive abilities.
But the true promise - that will defeat all PC - are the commercial opportunities. Forget cosmetic surgery; when elective preferences via gene modification become widely available, Katy bar the door. Here's a bonus question: does anyone want to take a guess what the market driven perception of beauty and intelligence will resemble?
I read a sifi story not long ago about a football game played in the next century. Almost all of the players were chimera — melding animal and human genes. The one full human is early in the game nearly killed by the other players. One chimera thinks for a moment how brave, and how stupid, the human is. Can’t remember the story’s name.