The one aspect of this whole inclusiv-speak bolleaux which particular irks me is the use of a plural pronoun for a singular issue. I was reading an infringement report which kept describing what 'they' had or hadn't done correctly and it was only when looking further that I saw that the aircraft was being flown solo. Which put an entirely different complexion on the whole incident.
There was an item on TV (television) recently in which some androgynous American couple announce that they didn't have a baby - it was a 'theyby'....