Mainly i think its because It sounds scary to people who don’t understand it and it is scary when you witness the abuse commonplace in households where the parent of an autistic kid don’t understand it.

Another possible reasons, there is also something to be said about the historical link between lgbtq and autism communities. Mainly rejecting the social constructs of gender “being told to act a way that feels superficial and unnatural to your identity”

Far more anecdotally. Many autistic people take a high stance on justice (their personal understanding), they often almost demand common sense reasoning, refuse things perceived as bullshit or not correct. Naturally struggle with lies and deception to the point of being trained to avoid it, finding escapism and relief in logic and a structure that eliminates suprises.

That doesn’t mean there are no autistic people that are bad people, liars, narcissists. Some actually learn to become like this often bitter from a world that rejects them. But in general the majority of autistic people i know could be considered far left radicals.

The Elon Musks are outnumbered by Greta Thunbergs basically. And with the Elons enjoying corporate protections they attack the Gretas indirectly with scary autism stories.