Differences between women and men.

[Regina]

I think we're so strongly shaped by cultural gender norms that certain stereotypes become "truths". For example, all young male children express emotion, get upset, cry sometimes. However, the message of "men don't cry" is so pounded into us that by the time we become adults, it's just a "truth" that men don't, because we're less likely to because of how we've been trained or shamed out of it.

The "psychological differences" are mostly nurture over nature. Some men and women might naturally buck the normal trends, but most people get conditioned into them.

Gender is a social construct, the idea that there are certain norms that men must conform to and women must conform to.

With that said though, I'm not one of these people who sees physical sex as a social construct, as much as some of the transgender rights movement like to say it is. You genitals are very real, tangible things, as are the hormones they produce, and the effect those hormones have on your body. Saying "biological men have penises and testes, and on average tend to be taller, hairier and more muscular than women" is not a cissexist stereotype, it's a very real observation. Being born intersex is a very real physical thing. I still wouldn't use that to discredit transgender peoples' decisions to live as the gender they feel suits them or tell them their identity isn't real, but I think it's too much to say flat out that physical sex isn't a real thing.

And because of that, I think sex is always going to be a thing. There are things biological women (or transmen) have to deal with that biological men and transwomen don't, like childbirth, the time of month, certain cancers and illnesses. And the other way around too, testicular cancer isn't a worry if you were born female. These are real issues and not social constructs.