Sadly, they/them/their are used ALL the time, incorrectly, by nearly everyone. I can’t count how many times my kids bring something home from school that says “Each student should do their best” or “If a student forgets to turn in homework, they will be penalized”, etc. Makes me nuts. So this self-styled progressive pronoun rebel won’t even be noticed — oh, except of course, for blasting her little pet lefty title. Mx? Prn Mix? Yep, as in Mixed Up Moron.
“Sadly, they/them/their are used ALL the time, incorrectly, by nearly everyone.”
You are so right. It drives me crazy. They must not teach “agreement” in English/Grammar classes any more.