Welcome to the fight.
My family has been antivax for generations ... possibly going all the way back to the invention of vaccines. At least back to the 60s.
Uncles. Cousins. Grandparents. Siblings. Everyone.
Discussion
Please, How the general health and intelligence of your family is going?
We are among the healthier in society, but then as a whole we tend to eat healthier and exercise more then average, so that probably plays into it. Autism is rare amongst us.
We do get childhood diseases like chicken pox, mumps, measles, etc., which builds a stronger natural immunity. I've never heard of any of us dying from those.