Being ace is about sexual attraction, not whether you have—or enjoy, for that matter—sex.
Being ace is about sexual attraction, not whether you masturbate or can experience sexual arousal.
Aces have always been part of the acronym, though where we have fallen has changed over time and in different regions. It is both incorrect to say "the A has only ever meant ally" and "the A has never meant ally" (the reason for this is complex)
Aces are queer even if they "pass" as cishet. Aces are queer even if they are cishet alloromantics. Aces are queer.
It would be nice if people would stop doing a discourse around this every year and just repeating all of the same wrong arguments again and again and again.
@hrefna I could see that argument holding a teensy bit if water if the contention was that everyone was ace and, therefore, the species would go extinct, but that isn't what anyone has suggested ever, so it's a complete non-starter. (Though, even in that case, I'd retort that we're humans and doing things nature doesn't is pretty much our whole schtick, among several other reasons it is just a terrible argument)
@stragu Yep, complicated history but it goes back to times when we needed to give people plausible deniability to show up to meetings and also needed more bodies who would show up to make a presence when you were small in number.
So you can find record of it meaning "allies" going basically back to the point where A was put in there for the first time. Asexuals were always part of the queer umbrella even during this, but tended to be put under the B rather than the A (or there was a second A).