Autistic or not, you really can't expect the entire world to bend over backwards to adjust to something so miniscule and ultimately irrelevant as a pet peeve of yours that's blown way out of proportion. I'd recommend a bit of behavioural therapy to try and work through your issues, rather than just surrendering to them and going "Welp! Guess I'll just give up on ever being able to cope with anything ever."That's a pretty screwed up, rude, and frankly dumb reply.
First off, being mildly autistic I have severe problems letting go of certain thoughts, ideas, or associations. Second, there's myriad people who take similar issue when unique names are involved.
I also can't handle the times I've seen someone in a game rather close in similarity to my grandmothers likeness; is that also somehow a problem for you? An unacceptable issue that makes me worthy of ridicule?
I was lamenting something simple, and was even kind of amused by the reactions I was getting. They all seemed in good fun. You on the other hand both spell and reason like you're probably not supposed to be on this site for another three years.
It sure as hell helped me a whole lot with my past issues, and if you're willing to give it a try then it could very well work for you too.
-Mal