Latinx - the attempt to culturally enforce a Germanic neuter gender on the Spanish language with only masculine and feminine genders.
German - ostensibly a Germanic language - has three genders (feminine, masculine, and neuter).
English - also a Germanic language - has (aside from archaic remnants) only one gender, or no gender, depending upon how you look at it.
I don't know of any language which employs an "x"-ending to indicate neutrality. Maybe Basque?!
Since we're speaking English, why don't we continue using the already-established gender-free term Latin (e.g., "Latin lover," "Latin languages," etc.) which had been commonplace in this country up until only recently?
Regards,