Do you go out much?

I’m not a party person but if you simply mean meeting people or being outside I think I’m about average in that aspect.

This has been my experience as well, which is why I try to avoid friendships with men.

I’m not friends with people I find unpleasant but I don’t care about the biological sex of the potential friend.

I imagine men only do this kind of filtering when they're in more equal environments like certain jobs that don't tolerate it, and environments with more equal gender ratios, due to the backlash.

That is what I think too.

Moreover, men expecting high-fives for their misogyny doesn't mean they see you as male, it just means they think you also agree that women are subhuman

lol, yeah, if they rant about other female people they are probably ranting about you too when you aren’t around. Hearing men making fun of female people on testosterone isn’t uncommon either and they aren’t using male-pronouns for them while doing so. In front of a known female person on testosterone they might censor their thoughts on that subgroup of female people and say sexist things about other female people instead.

I feel that's like saying effeminate and weak straight men who get bullied for being gay must also be gay. Sure, both might suffer the effects of homophobia, but that doesn't make them the same thing.

With adult human struggles I was referring to adult human struggles that are common to most adult humans, my point was that I don’t feel something uniquely in common with someone just because they share a struggle with me if most humans also share that struggle. Regarding your point, I thought about bringing that up but was lazy, but I agree. The homophobia a straight man who is mistaken for a gay man faces would feel less personal as he knows the homophobia was misdirected.