@WinterSnowing I find your response very telling. Some people feel that they can belittle and ignore the majority of a whole section of society just because of a few idiots. Most autistic people are perfectly happy to let anyone chose their own terminology, even the term Asperger's is widely accepted despite it's very problematic origins.
We would just like to let people know that the majority of us prefer identity first language. This is not because autism is our entire identity, it is because it is a very important part of our identity that we want to be recognised. We are not trying to stamp out discussion, we are trying to be heard, which for a group that contains so many non-speaking people is very important.
Autistic people get to chose their own terminology and you do not get to tell us why we are doing it.