I'm diagnosed ASD myself. A lot of us on Lemmy are most likely.
I think where I'm getting confused is where we're taking issue with distinguishing "autistic transgender puppygirl" and "shredded Aryan German guy". Those are distinctly, visually, very different things. In order for the joke to land the reader needs to be able to distinguish the contents of the juxtaposition.
I don't think this joke would have landed if the dichotomy being drawn was between "one perfectly valid human being" and "another perfectly valid human being, who has problematic views on the states relationship with the body-politic."
You could remove the reference to autism I suppose but, again, the joke is in the fact that the vibe-coding chud is angry that they are mogged by what they perceive as 'lesser'. For that to work you need to create some homunculus that will represent that person.