You cannot disprove a negative. There is no way to prove that vaccines do not cause autism. There is no way to prove that water does not cause autism. The sample sizes are to large.
Logically you should try to prove that autism is caused by vaccines. The sample size of autism is much smaller than that of vaccines.
The other challenge is seen by asking is all autism caused by vaccines?
If there were not vaccines would there be be no autism?
Autism is historically rare, now it is common. There is your sample size.
Any attempt to delve into YEAH BUT, is misdirection. Diseases that occur naturally go away, as successive generations catch them, and survive. They then pass down natural immunity. Shots do not convey natural immunity. Native Americans were devastated by diseases that Europeans were not. It is because the survivors pass on their immunity. Like people who catch Chicken Pox, don’t get Shingles when they are older.
In our childhood household, we had scarlet fever, Mumps, Measles, Whooping cough. The reason our kids did not get those things, because adults passed down immunity, not because Big Pharma experimented on them with vaccinations.
In the current day, government finds a case of bird flu, they wipe out the entire lot. Historically, people would segregate the sick, 1/3 would survive and breed a population of immune birds. Big Pharma says kill them all so it doesn’t spread. THAT IS INSANITY.