"if you're cisgender, I'd like you to consider how you would prove your right to be in a public toilet, a changing room, or a refuge, if someone were to challenge the legitimacy of your sex" - @sistersinead asks. This is why I as a cis lesbian have skin in the game

Like, what am I supposed to do, show my snatch to some crotch-obsessed busybody who thinks my camel toe is a bit too chubby to be using the ladies?

Am I meant to carry my birth certificate to the swimming baths, just in case some weirdo spots that I haven't bothered to wax my moustache that day?