If you dislike zes, xes and eys and find them horrible little abominations that have no place among good and decent words, and suspect they were meant to trick us into unknowingly saying things that count as worship of Cthulhu…
...oh, wait, that’s me. Let’s try again.
If you dislike zes, xes and eys, then using “they” seems to me the best solution if you care about being gender-neutral.
If you dislike zes, xes and eys and find them horrible little abominations that have no place among good and decent words, and suspect they were meant to trick us into unknowingly saying things that count as worship of Cthulhu…
...oh, wait, that’s me. Let’s try again.
If you dislike zes, xes and eys, then using “they” seems to me the best solution if you care about being gender-neutral.