OK, just googling the very first study in your post:
Hepatitis B Vaccination of Male Neonates and Autism -
"They looked at data from the National Health Interview Studies, and looked at autism and hepatitis B vaccination. They used surveys from 1997 to 2002, with children aged from 3 to 17.
The autism group had 33 kids total. Of these, 9 of 31 (29%) were given the HepB vaccine. Compare this to 1,258 of 7,455 (17%) of the non-autism group who were given the HepB.
9 out of 31.
Take for example kids aged 17 in the 1997 survey. When were they born? That’s right, 1980.
When was the Hepatitis B vaccine introduced? 1991. According to Mr. Kirby himself, the HepB vaccine didn’t get fully implemented until about 1996."
So...they claim these kids got autism from a vaccine that most of them never even got. I stopped reading after number 1.