They are telling you what specific so pal construction of gender they fit within. Gender is a social construct. They are explaining how their construction of gender works.

> So you’re just saying biological sex isn’t binary?

Correct. And it doesn't have to be. It's not like I need sex to be a binary to accept the existence of cis men and cis women in society, and it also means I can accept the existence of trans people and especially non-binary people in society.

Do you understand that we can apply categories to a continuous variable?

For example, we can categorise colour despite it being a spectrum; so it is with species.

That is to say that there is a squirrel-corn spectrum; we just have to go back several million years to the last common ancestor of animals and plants (and forward again) to observe it.

Well, the net result of not learning that concept are a public who believe in genetic determinism, Victorian Era race categories and confusing binary for bimodal. 😔

My entire concept of what sex is is that it is something physical, biological, and material.

If you think that is wrong, why do you think sex is something metaphysical?

Colin “fake data” Wright
Colin “can’t program” Wright
Colin “all my former friends hate me” Wright