Sure. I know people "on the spectrum," I know people with various forms of PTSD, I know people with bipolar, I know people with ADHD, I know plural folks, etc., and none of them act like RMS. I know very friendly, conscientious, and kind neuroatypical folks. I know brusque and tactless neuroatypical folks with whom it's draining to interact in certain ways. They still don't act like RMS.

So the (implicit) argument "This is just what you expect with neuroatypical people" / "If we want to be welcoming of neuroatypical people, we have to be welcoming of people who act like RMS" is even less true because of how diverse the category is. We know RMS isn't being excluded because of his (hypothetical) neuroatypicality because there are so many neuroatypical people who aren't and wouldn't be excluded.

If you want to argue that the problem with RMS is he is in the narrow category of people who act like RMS (and I would say that not even Linus Torvalds is in this category), that's a fine argument to make, but it's a bit circular to defend his inclusion on such grounds. Is this category the sort of category, like race or class or neurological makeup, that is beyond (or mostly beyond) one's control and has little correlation with whether you can do good work? Or is this a category like "asshole"?