To be fair to our autistic women and enby comrades, Its pretty much always been autistic men, but still.
You have no idea how many times I've been like "hey dont say that, thats ableism/a slur" and them be like "get over it/grow a spine/just words" and when I confront them about the fact that i'm autistic they'll say "I am too, so what?".
Just look at my post history right now. There's one I'm arguing with right now.
it happens over and over.
IRL, yes, I got bullied for my stutter by a fellow autistic just last week. Online, I feel like those are often the sort of autistics who are too ashamed to admit they have autism unless it can score them a quick dunk. As a result, I rarely run into them in autism-focused communities - it's usually just places like reddit.