noble I can try, although I don't know what the current BBC issue is (on holiday, not keeping up with news)
Hamlet See, the way I see it, if someone wants to come in the toilet and use the toilet, as long as I don't personally have to look at their genitals while they use the toilet I couldn't care less if they have a vagina or a penis (or how big and hairy it is).
If someone wishes to come into the toilet to commit a crime, there is already nothing actually stopping them. A criminal man can already walk into the ladies loos, attack someone, and then either hang around to be arrested or leave. The crime is not them being in a lavatory not meant for them, it is assault. If someone identifying as a woman goes into a women's bathroom and assaults someone, the crime is still assault. They don't get a 'free pass' just because they ID as female?