I just wish it didn't conflate singular and plural. But the convenience of broadening an existing pattern rather than inventing a completely new one still wins in the end.
Gendered pronouns and nouns are just a bunch of useless sexist baggage and linguistic friction that make languages much harder to learn, and uselessly complex, with more trivial arbitrary details to memorize or get wrong.
But all those gender-critical sex-obsessed people who make a big deal out of getting performatively offended and pretending to be confused by neutral pronouns, angrily insisting that every word possible explicitly defines a gender, are just weird.
The person doth protest too much, methinks.
But English nouns are already ungendered with very few exceptions. Pronouns are also all ungendered except third person singular, so there's a much stronger case here for eliminating the exception in contexts where it really doesn't contribute anything useful.
As far as getting offended, I think one has to distinguish between the person getting misgendered being offended themselves vs people getting offended "on behalf" of others (who might actually be rather offended at such misrepresentation of what they actually want). E.g. with Spanish it's far more common for native English speakers to be adamant about "-x", while many native Spanish speakers actively dislike it.
They weren't recognizing genderless people just because they used "they" when the gender was unknown ;)
Not true. It was used in the past to refer to an unknown person. I.e. "When a candidate arrives given them the test." You don't know what sex the candidate is before he arrives and instead of saying "he or she" you say "they".
But nowadays people use it as a superclass of he and she: "I asked my boss for a raise but they refused". It doesn't make any sense. You know very well what sex your boss is, but "they" is used for virtue signaling. It's a way of saying "I know my boss is a man, but I'm going to use they because a woman could do just a good a job and he, sorry, they does."
I doubt it's virtue signaling. I'll use they to refer to the position not the person. Sometimes it's deliberate obscuration. Other times it's a form of laziness. I don't have to think about which pronoun to use if I just use the generic one.
In my case, once I got used to seeing people as people first instead of their gender, it's been easy to slip up on the pronoun.
There's no virtue signalling, you're reading too much into it.
You don't know why other people choose to use the words they do, yet you presume the worst and accuse people of being insincere and lacking virtue despite (and because of) their polite behavior, regardless of their true beliefs, when it's actually none of your business to police and judge their grammar.
I'd rather work with someone who purposefully signals they have virtue than someone who purposefully signals they're a sexist asshole, any day.
The person you responded to is right. If you start mixing in "they" you're just confusing the listener, because they will assume you're now talking about some different people. I wouldn't have the patience to listen to somebody who speaks in that matter and deliberately makes their words cryptic.