
there's a difference between finding mutual camaraderie and connection with autistic people and so preferring to have relationships with them, and actively seeking relationships with autistic people like people who fetishize autism do. it sounds like you might've worded your tastes poorly and got accused of being in the latter group instead of the former.
So far nobody has accused me of that because usually I say “As an autistic guy I find it easier to date autistic people because we understand each other”, or “I prefer to date other autistic people as an autistic person myself”. I’ve heard it’s bad to say “I like girls a little autistic”. I usually don’t word it like that, and I always make sure to include “as an autistic person”. But I’ve heard about this a lot.