I am becoming a future doctor-so I do have bias?
But here my view and understanding:
The rise of autism is more to these factors:

• Minor cases are caught thus boosting the numbers-10 years ago these cases of autism would not be called autism
• Pregnancy at late stages inc the risk of autism by more than 50%. With people marrying/having kids later the risk of autism inc
• Environment we can agree it not as good before. Affecting the baby and kids development.
• Our food which is diff than before which if a pregnant women takes it could affect the baby as well
• Dosages are too high? Yeah not how it really works. You kinda have to take it in one shot-boom or bust. It works much much better than over time which is iffy.
• Not really serve to increase the immune system later in life. The vaccines give the same biological response as a natural one albeit more controlled. Shingles from vaccines are very rare-1%- compared to non vaccines.
• Some vaccines are pretty severe though-they work are they needed? Most cases you won't even encounter the virus but it still pretty good to have provided you are not sick during that time.