Where does this "they" come from? You seem to know a lot about the guy. Do you have some information about his gender that's not public to the rest of us?
You comment seems pretty hostile but since prescriptive English usage is the greatest of all possible topics, I choose to view your question favorably. "They" is accepted in written American English with a singular antecedent when gender is irrelevant, unknown, or when gender neutrality is preferred by the referent.
Hmm, so which of those three cases are we in? To his critics, his gender sure doesn't seem irrelevant, and in fact the whole gist of his odd appearance in TFA is to lump him together with all males, who the author sees as "more or less all the same person". And his gender is certainly not unknown.
Which is why I ask, do you know something different about what gender this referent prefers?
Or, did you just trot out this overly academic tripartite definition out of pure snark, with no intention of defending your asinine usage of "they" as a valid instance of any of the three cases?
HTH indeed.
FWIW, I don't love what Damore did, and I think he was sort of naive and inconsiderate. But if his critics can't be bothered to go further than ad hominems and passive-aggressive misgendering, as you've done here, it feels like a point in his favor.
