Beverley
This is a genuine question. What IS the solution?
Feminists have been saying for several years now, the solution is
Keep male spaces for male-only.
Keep female spaces for female-only.
Introduce additional mixed sex, gender neutral, unisex, whatever you want to call it spaces for everyone and anyone who is happy to use them.
This will include transpeople (because the presence of a transperson automatically makes a single space mixed sex anyway).
Do this WITHOUT taking away spaces for disabled people, women or men.
By "spaces" I mean ALL spaces, eg, a mixed option for The Olympics, for loos, for prisons, for swimming sessions, cycling races, weightlifting contests, changing rooms, dorms, whatever, every and any.
Basically, ring-fence female spaces, and then do whatever so transpeople can be included in whatever it is without taking away women-only spaces.
(A bit like how there used to be a Hampstead Heath male pond, female pond and mixed pond, but obviously now we only have 2 mixed sex ponds and one male-only pond)