You can entertain yourself by reading the responses to a transphobic troll on the Coyne & Maroja thread. I won’t bother with most of it — the commenters have been doing a fine cleanup job — but their first objection is a major peeve.
Biological sex is a binary defining reproductive roles/potential. It doesn’t govern behaviour, it doesn’t tell you who you can sleep with, it doesn’t deny the existence of trans people. The day a testicle produces ova or an ovary produces sperm there may be an argument for rethinking it, but dishonestly claiming that it has any more relevance than that does not alter reality.
The first words annoy me. Biological sex
…what other kind is there? They then go on to claim that sex is only about reproduction, a surprise to me. I guess they only have procreative sex then, and are unaware of all the other ways humans use sex. It’s just eggs and sperm, nothing else, and reducing it to single cells interacting with each other is the extreme they have to go to if they’re going to fit it all into a small, simple, binary box.
I also have to wonder who the hell is arguing about testicles producing ova? This is so typical, the ‘phobes inventing claims nobody is making so they can “win” ridiculous debates.