Why don’t we separate spaces, sport, prison, domestic abuse, report crime stats etc by what DNA we have. Sure there will be some people that do not fit XX and XY but we can deal with those people on a case by case basis and they can join a group that suits them the best. I assume this is what happens generally anyway.
I could request to see an XX doctor for a smear test. And I would not be able to compete with XY people at Olympic swimming. Crime stats should be reported based on DNA. Hospital wards could be XX or XY. Side effects of medicines would need to be reported by what DNA a person has. It would be made very clear that people with XY cannot give birth and don’t need tampons and that XX people don’t need a prostate exam.
Why don’t we just go down this route. It seems that the gender/sex argument is never going to be won. But… you can’t argue with DNA. Surely.