> women claim it exclusively as theirs

This way of putting things, as if groups like "women" or "men" were clubs with decision making processes, is absurd and only serves to cause division and infighting.

Call it emergent behavior then; whether through uncoordinated coordination of the media/marketing world, or uncoordinated coordination of peer/social pressures, these expectations exist.

I have literally been shut down in a conversation, in person, at work, more than once, because I was a white male in tech.

It certainly takes a special kind of mental gymnastics to figure that a problem that disproportionately affects men is another example of men excluding women from something...

it's not a way of putting things, it's fact

I'm illustrating the problem, which is that we have to decide that one gender or group has "a thing" to the exclusion of everyone else.

I don't see how your solution of "men hav[ing this] thing" helps men who have body image issues, nor women who don't feel they have close friends.

It's not like the dude with body image issues is saying "oh, thank god my problems would be recognized if only my issue were a lack of close friends."