dave50
You've made up a hypothetical situation, and then asked what will happen if that situation occurs.
Here's your answer...
If man wants to rape or sexually assault a woman, the most difficult route he will take would be to do it in a women's toilet.
The easiest route is the option he currently has, which is to grab a woman off the streets.
Just think about it for a moment. A man who claims to be a woman goes into the toilets of a club, right?
He would stand out like a sore thumb. There would be countless witnesses. Women who go to the loo would come out and say, "Blimey...I've never gone to a toilet where there's been a transexual before".
What you would have is witnesses. And someone who is that noticeable would have many eyes on him. That equals witnesses.
That's what would happen in real life. Your hypothetical situation is so very unlikely to happen that it can be discounted.
If a man is going to sexually assault a woman, he's not going to want an audience who will notice him.
It's a daft supposition.