I agree, personal boundaries seem to be all over the place. It is about power (isn't it always?) and I sometimes think I can understand women breaching men's boundaries - by sexual & verbal assault, etc, as you described and in hen parties - as a kind of warped bid for equality. Very sad if we can only attain equality at base, abusive levels: I'm sure equality is supposed to mean equal respect!
This has reminded me about an ongoing argument I had with XH about strippers. I sometimes hired male strippers for girls' nights. He was addicted to lap dances. The difference (which he did get, really, but chose not to admit) is that the male strip act for women is jokey; parodic. It's taken that way, too - the female audience giggles a lot, plays the part, and leaves joking about who made the biggest fool of themselves. At no point does any woman feel like really having sex with the stripper. The strippers know this; their job is to entertain, not seduce. With the man and his dancer, it's a different story altogether.
I haven't read any theory on this (can't be bothered either) but I suspect part of the male stripper's function is to temporarily rob "Men" of their power. For half an hour we have a fit, young, naked man performing jokey acts for our amusement. He wants nothing from us but a round of applause and his fee. Unlike the lap dancer, he's not selling sex and the women aren't looking to buy any.
If I go any further into this, I'll lose today's work ... must concentrate!!
Thank you for your lovely messages :)