For a long time, I wondered what it meant, when trans people who had no intent of taking transitioning steps claimed to identify as a woman/man.
I think I know, now! So that's something.
It appears to be this: to identify as something is to wish to be witnessed and judged by others according to social standards set for that class.
This is exactly, when you think about it, what this nebulous notion of "identity" is. Which is interesting because it changes a bit of the classic Blanchard categories.
Blanchard identified gay young transitioners and older autogynephiles, but the lines are blurring. And now FTMs are more common than MTFs among younger age groups.
What if what we're really looking at are two kinds of trans people: those who transition to fit in, and those who transition to stand out?
We see these patterns, if they're structured these ways, in a very parallel way across the sexes. There are transitioners, often gay or lesbian, who don't conform in any way to societal gender roles, and who would fit much better into the stereotypes used to judge members of the opposite sex.
And then there are transitioners who want to stand out and be different. This is why so many of the autogynephile men and the early-20s fetishist university TRA crowd are absolutely bog-standard men, who adhere to every male stereotype imaginable: too many video games, too much porn, don't pick up after themselves, low hygiene standards, unable to commit to relationships or put anyone above themselves.
But because they've been that way as men all their lives, and because they fetishize women who play video games, are into porn, etc., they think they'd be hot stuff if they just got judged as being hot nerd girls. Suddenly, playing video games wouldn't make them normal and boring, it makes them exciting and interesting, wow, a girl who plays video games and likes porn, who wouldn't want that (in their mind)?!
The same phenomenon explains the heterosexual female transitioners who fetishize "soft bois" and gay male relationships while often taking few steps to transition in any permanent physical way. They think that their proclivities that are currently marked as "feminine" and "basic," in the parlance of our times, would be viewed as awesome, interesting, unusual characteristics for a man.
Once I realized what "identify as" really meant, it made sense to me that there's a category of trans people who really believe it's more important for you to use their pronouns than it is for them to even attempt to "pass" as the opposite sex. It's why they think their identity is being stolen to the point of feeling like they're being murdered by words: If other people don't buy in, then with this idea, they are essentially killing the desired identity.
I don't know why it didn't occur to me until now that this entire 21st century social media contagion phenomenon of "gender identity" isn't about actually seeing the world "as" the opposite sex, but about wanting to be seen by others in a new way. In a world where people feel ever more judged and do more and more "curation" of their "brand" and image, they want to feel what's often called "empowerment" about which standards they're judged by.