Hate to tell you but I'm non binary. I'm 49 and knew in 1978 that I was the wrong gender.

I'm also neurodivergent and there is compelling evidence that there is a connection between gender dysphoria and neurodivergant disorders like adhd and autism.

Maybe accepting trans people is simply learning to accept that people are built different and that something that is part of a person's disability should be accepted because people with disabilities should be accepted.