Interesting discussion. These two quotes jumped out at me:
Like for me I'm autistic and trans and for me thats because in my brain i don't feel like I'm a boy or a girl, I'm just a person
and
A NT person might feel shamed for having gender-divergent interests, and suppress those interests as a result, leading to more rigid gender conformity. A person with ASD might not feel that shame or have any motivation to suppress their interests and self-expression, and instead say "well if being a boy means I have to be X, and I'm actually Y, then maybe I'm not a boy"
I'm not (as far as I know!) on the autistic spectrum. I just feel like me in my head rather than male or female, and I've had 'gender divergent' interests that I've not suppressed despite having the piss taken out of me when I was school because of it.