As far as I know (not kuch actually) there are some tries to slightly reform German (DoktorInnen and alike), and maybe even Spanish where in a group with mixed males& females you’d target them with male pronoun and seemingly that makes some people sad.

It’s indeed not an issue with Hungarian, although I’ve seen a party invitation online that decided that it needs to be inclusive, so the spoken language should be English, and THEN they complained about pronouns. Weird.

So it’s probably not a big issue. I’d like input from non-binary speakers of those languages though; since I’m not non-binary myself it’s possible that my view is incorrect.

I’m only a native Romance language speaker (Spanish) who is both an ally and an amateur wordsmith.

Due to this, I’ll not pretend to go into any depth of why you’re wrong per the zeitgeist of Spanish youth today, but will instead give you the more or less settled informal solution (The RAE isn’t likely to add it officially):

Latinx.