Huh. I mean, if you're gonna go that far to Make A Point with gender-neutral pronouns, might as well go the Stallman route with per/pers: https://stallman.org/articles/genderless-pronouns.html

(I'm not necessarily endorsing his screed here... but it is one of my "favorite" bits of Stallmanism. His first entry in the "subsequent notes" section makes me laugh every time.)

edit: oh, this user actually has a similar piece on xe/xem pronouns on his website! excellent. this pleases me greatly (no sarcasm).