This is very well put. People often ask transgender women “How the heck can you know that ‘who you are’ is the same identity that [AFAB] women in general share? You’ve never been one, so how can you know that you’re ‘like them on the inside’ ?” But the same is true for cisgender women — exactly as kinicbird just put it, they’ve never been some other woman so as to know what part of ‘you’ is attributed to what they have in common with women in general, as opposed to being distinctively their own!
So let us assume that we do uproot all the social connections in our collective heads between morphological maleness and “manhood” or “masculinity” and likewise for the connections betwixt physical femaleness and “womanhood / femininity” — how would they persist as notions at all? They are already generalizations — some people prefer to say “stereotypes” — what would they be generalizations about at this point?
Conversely, people (including many people on this board) have asked me, “Why the heck can’t you just be a male who rejects all the sexist stereotyped expectations? Why do you say you are a girl, or femme or whatever?”
Imagine that over there, through that door — pretend I’m pointing at a door — someone male is going to walk into this room. You don’t know anything about them except that they’re male, okay? What expectations and assumptions do you make? I bet (for many of you at any rate) your first thought is “I am not sexist, I don’t ascribe to a bunch of moldy outdated preconceived notions about how males are, as distinguished from females, so all I’m going to expect of this male stranger is the same stuff I’d expect if it were to be a female stranger instead”. But is that true? Can I challenge you on that? Because I bet you are well aware that a lot of the male people on this planet don’t believe that, although you do, and you have met some of the ones who ascribe to a lot of “shoulds” about how male people should be, and how they should not be. So this hypothetical male stranger could be one of those, or they could be one of the people who didn’t spend a lifetime conforming to sexist claptrap. And maybe, just maybe, in the back of your mind, you haven’t entirely dismissed the possibility that some of the generalizations about male and female are valid as generalizations. So isn’t that going to affect your expectations about this stranger who is about to walk in through the door?
Here’s what may not be among your expectations: that the male person who is about to walk through the door matches up pretty closely to the stereotypes about women and girls — that he fits the description of feminine. After all, if this male person is nonsexist and really free from sexist stereoyping, we’d expect a sort of unisex person with a mix of traits, a sort of androgynous person.
So when it turns out that the male stranger who walks in actually is like that (feminine, I mean), your expectations — which are probably over there somewhere midway between unisex/androgynous and conventionally masculine — aren’t a much better fit than if you held sexist stereotyped notions yourself.
In math we have the concept of an asymptote, a line that a curve approaches but never actually gets to. Our attempts to suspend sexist stereotyping tend to be like that, I think, for the reasons I’ve just described.
But if you believed that some male people — a minority perhaps — are feminine, not merely neutrally androgynous, that shifts your expectations somewhat.
Those of us who are like this grew up in a world that had (and still has) notions about how male and female people are different. We may be the way we are (feminine males and masculine females, that is) because of something built in, or we may be this way because the folks we identified with at some point in our lives were the people of the other sex, and we aspired to be liked by them, admired by them, accepted among them, and so while others of our sex were policing their own behavior to fit in with their own sex, we were policing ours to fit in better with the sex of the folks we admired. And that policing, it models a person, it shapes who they become.