Hold on, slow down.
Yes, I know the biology underpinning "biological sex" is real. Anatomy is real. Gonads are real. Human development is real. Bone density is real. White blood cell count is real. Brain activity is real.
It’s birth assignment.
This is not biology.
What we talk about as if it’s some concrete thing, is mostly a story we tell ourselves about several disparate concrete things.
Every single sentence, every statement they make about biological sex is false.
Why am I supposed to admit this is legitimate, again?
And most people with a penis will be male. Most.
The boundaries of exclusion bound up in this notion of "biological sex" cuts far wider a swathe than just its intended targets.
“Biology” my entire ass.
That erasure is far too common.
This is not to deprive LGB people of their presence throughout queer history, merely to say that up until quite recently society wrongly regarded all LGBTQ people as some flavor of trans.
This isn't biology. This is a quasi-religious belief system founded on two parts actual biology with 20 parts religious sexual shame and rigid binary gender roles.