I've given this topic a lot of thought over the past few hours, and I've concluded a few things.
But first, I am so sorry your son is going through this OP. It sounds deeply traumatic, and of course anyone else's suffering doesn't make it better.
I was trying to work out why some of us were a bit piqued by the subject, from a feminist standpoint. And, with respect OP, I think it was due to the 'Can you imagine...' bit in your first post. What I'm saying is, if you'd simply explained your son's situation, or even that of a 'close male friend' I think the response would have been very different. The starting point, however, had a distinct aroma of 'those bloody feminists wouldn't put up with this the other way round.' Now, I know OP didn't say that, but what else was the significance of the 'Can you imagine..' bit? There is a sort of goadiness implicit here, I'm afraid, even if that wasn't the intention. And, of course, many women don't have to 'imagine' this sort of shaming! That's the point!
I get that you're angry and upset OP, and that you weren't trying to goad anyone. But that starting point has an anger against outraged women in it. Women are very often outraged by equivalent body-shaming behaviour - with great justification!
It's not possible within our culture to start a gendered body-shaming thread without acknowledging the climate in which we live. You can't start a thread in a vacuum. The fact is, women do put up with a hell of a lot more of this shit than men do. If OP had started with a tone of 'Look, I know women are often upset by body-shaming, but can we spare a thought for this issue...', I think the thread would have taken a different turn. As it was, we started with a) a reference to a man being an arsehole (just to remind us why women are often angry) and b) a suggestion that women would not put up with equivalent behaviour, when we all know that they do, on a massive scale!
I think the whole 'handmaiden' thing is beyond ridiculous, and has been used as a distraction by some.
Feminism isn't a hobby. People, including me, are still very, very upset by the large-scale sexism they see around them. I wish I didn't see it, but I do, all the time. So I'll see this sort of discussion through that prism. And I'll bite when a discussion starts from a misguided-sounding premise.