My ex was in the autistic spectrum (part of the reason why I let her get away with a lot of the stuff she did to me... <_<), and I once helped out at a birthday party where there were a large number of children with autism. They were awesome.
EDIT: Took out some faulty arguments I made because out of haste about the swine flu ingredients. I will say that some of the vaccines, at least, contain none of those ingredients.
There are autistic Amish children... They're just remarkably few and far between.