The bloke I met doing it was a perfectly nice guy - I knew him, no ill intent at all, he was just doing his thing in absolute obliviousness to that female people might find this a bloody unpleasant and unwanted/crass experience.
The goal posts constantly shift. It begins with: no one will ever do this (so female people you have no right to say no to males.)
When female people say yes, they do, look there it is happening and I DONT LIKE IT OR CONSENT TO IT OR WANT TO PARTICIPATE IN IT SO I DONT WANT TO LOSE MALE FREE SPACES
It shifts to: You have a weird problem with penises, you need to get over it and embrace male people waving their bare penises around in your vicinity.
No. Fuck off. Is my considered reply.
It is not the job of those unlucky enough to be born with female biology to suck up the selfishness and desires and issues of those born with male biology.
Female people are entitled to male free spaces, and that male people don't like being told 'no' when they want to be in a female space with vulnerable females whether they consent or not is a male issue. Not a female one to fix for them at their own expense.
The sex based entitlement is exactly what underpins all of this. Make new spaces. Gold plate them. Have Elton John playing live in them. You cannot have my space with me in it and insist I selflessly meet your needs. #notyourfuckingmum