Download PDF Link betw transgenderism & Autism 
Excerpt: A pair of studies conducted in 2016 and 2019 indicate that autistic children are between four and seven times more likely to experience gender dysphoria or gender variance, he said. A 2019 was conducted by researchers at the Uniformed Services University of the Health Sciences, and a 2016 study was conducted at New York University.
Nicolosi said there are several reasons for the connection, including “rigid thinking.”
For example, if a boy with autism lacks stereotypical male interests, he may doubt he is a boy and assume he must be a girl. Reading social cues is often hard for those with autism, so they may perceive same-sex peers as getting along better than they do.