> I'm not saying that there aren't differences, I'm just saying they are practically negligible when they are compared to social differences. I don't doubt an MRI can predict sex relatively well, but a far more accurate prediction can be based off of what type of underwear you wear and whether you carry a purse or a wallet.

Do you base that conclusion on a careful reading of the empirical evidence?

> The social constructions and stratifications we have made for ourselves are far more powerful than differences in our own genetic code. It's largely this ability to modify ourselves through society that differentiates us from other animals.

Tell that to someone with Down syndrome. Genetics are quite powerful.

> Do you base that conclusion on a careful reading of the empirical evidence?

Since the industrial revolution humanity has changed so quickly to become practically unrecognizable to those who came before it. A "careful reading" of Darwin, Dawkins, or any credible geneticist explains that is not even a blip in the genetic timescale. How could you explain that change with genetics alone?

Nobody is talking about differences from humans now to pre-industrial revolution. We're talking about differences between the sexes - an evolutionary pairing older then the species itself.