Here's an example. How do you allow one man in womanface into the women's room, against what will undoubtedly be the wishes of at least some of the women there, and then exclude another?
He's entitled, he's narcissistic, and he has male aggression coming out of his ears, imperfectly cloaked in "poor me" crybullying. It's all about him, only he matters. These are two identical single use cubicles, one for men and one women, but he only "feels safe" in the one designated for women. He has obviously made the woman who objected, and her children, feel pretty unsafe.
It would be just the same if there were regular men's and women's rooms, it's just that the arrangement here highlights how dishonest this "I only feel safe here" shtick is. He's mentally ill. But he's a man, and men need to step up and deal with these men, not pity-shame women into taking on the job.
The main point, however, is that once you've made a ruling that the man who has made a supreme effort to look feminine in a head and shoulders shot is allowed in, despite women's objections, you can't keep this guy out of anywhere. The principle has been conceded.