Dude. You're arguing a point we are not makng. The argument being bantered is whether the use of pronouns refer to an individual's choice of gender, or of their evidenced sex. I think it is their evidenced sex, evaluated correctly or not. You run with what you can glean, not stop and ask the third person to fill out a questionnaire.
This is sort of a fundamental element that gets glossed over. And it's even deeper of a disconnect, it's a mixing of different meanings of the same word, with very different contexts.
On the one hand, there's personal identity - what we believe about ourselves, and what we want other people to believe and perceive about us. This is a desire, a wish - it's what we want to be viewed as, regardless of whether it's true. I
want posters on ISF to see me as level-headed, rational, logical, compassionate, and reasonable. Those are elements of my personal identity, how I see myself. It happens to be a view of myself that has been reinforced by other people in the real world... but I'm also well aware that at least some ISF members do NOT perceive me in that way.
On the other hand, there's identification - the notable characteristics that distinguish one individual from another to a third party. These are the things that go into a police report, or you find them on your Drivers License - height, weight, age, hair color, eye color, etc. But it's also a fluid aspect, because it's contextually driven in most situations. If you're pointing out one person among many, the items on their DL probably aren't going to be the first things you think of to disambiguate an individual from a group. For example, if there's a group of football players standing in a room along with one very short and slightly built flute player... the speaker is likely going to say "the small person". If everyone is in uniform except the civilian, we might say "the one in the red shirt". If you've got one Sri Lankan standing with a bunch of Scandinavians, it might be reasonable to say "the brown guy", whereas if that same Sri Lankan is standing with a bunch of other Sri Lankans, a few Pakistani, and a Malawi, we might choose to say "The guy in the baseball hat" because that is the most efficient way to identify one among many.
Sex is very frequently an easy way to disambiguate, because in the overwhelming majority of cases, it's easily and quickly distinguishable. It may not be enough by itself, in a large group... but saying "the blond female in the red shirt" helps exclude the people not being referenced in a very efficient way.
In the vast majority of cases, pronouns are about identification, not about personal identity. They're about the speaker using efficient means to disambiguate the object of discussion from others. Pronouns are indicators of
apparent sex. Our assessment of apparent sex isn't always going to be correct, but it's usually correct and it's useful. If a transgender person passes well, they will naturally get referred to by the pronoun they prefer - but that has nothing to do with their
preference. It has to do with the speaker's
perception. Buck Angel will likely get referred to as "he" because they pass well, and they are generally perceived to be male - even though that's a false perception. If Angel is standing in the presence of several natal males, however, there's a pretty good chance they get referred to as "the transman" because when there's a direct comparison, Angel's inherent femaleness is actually fairly apparent. The same thing goes with Laverne Cox, in the other direction - they pass quite well, and are likely to be referred to using "she" unless they are in the presence of several natal females... at which point the male markers are still pretty apparent.
In either case, however, these are terms of
identification, not the subject's
personal identity.