I had a breakthrough a while ago when I realized that people must be mistaking the word "pronouns" with "hormone replacement therapy" or "HRT." It's really the only thing that makes sense once you think about it.

Example:

"Hey, I'm writing an article about the cool car you built. I don't want to write your name out a bunch because it would make reading the article a little harder and sound repetitive. Can I say stuff like, 'the car she built' or 'her engine is rated at 340 horsepower'?"

And she would be like, "Yeah, of course, that's normal."

BUT if the journalist were like

"Hey, I'm writing an article about the cool car you built. I was wondering if I could inject this medicine into you with these needles to begin to turn you into a man."

I'd expect the response like, "What?! I'm a woman! I know I'm a woman! Everybody knows I'm a woman! I present as a woman!"

So it makes sense to me... when you ask, hey, what are your pronouns, and someone goes, "No! I will not use pronouns! I'm a man! I know I'm a man and everybody knows I'm a man!"