Women HAVE been assaulted, harassed, flashed, and raped by the experiment of permitting men into women's wards. It's happened. The ones who are rapists don't come with t shirts annoucing it; there's no picking them out. If you let any men in at all, then sooner or later you're going to inevitably get one of these men who proved they are not a safe group. It's the 'here's a box of chocolates, one will seriously injure you but I'm not telling you which one, help yourself' thing. Why on earth do you think women should sign up for that?
I can only assume you think that women hurt, raped and harassed is worth it in the name of letting in the whole group?
It's disingenuous too, as you know perfectly well from hanging around here, the distress and harm a man can cause a woman just by being in a room where she is vulnerable, exposed, feeling awful, or not able to be in a mixed sex space, means he could be a saint, the loveliest and safest of all men, and still cause harm because women's single sex spaces need to be single sex.
Thank God the law and policy (affirmed after women had to drag all this through court and prove the above) prevents people with these awful views of women subordinating and oppressing them in their men's rights activism, and such opinions on the internet are just opinions on the internet.