@The Bread Guy The criteria for ASD, ADHD, etc have changed constantly over the last 20 years, with a lot of previously completely separate diagnoses merged under the same umbrella, and actual diagnoses is pretty subjective in any case as it's based on behaviour not any kind of consistent marker. It also varies widely country to country.
It's also not infrequent that a kid getting screened leads to one of the parents getting diagnosed, with similar traits in previous generations, so there is a huge genetic factor they don't understand, and it's not like adults getting diagnosed in their 40s, 50s and 60s were neurotypical before they had that diagnoses.
They've also found in other studies that the rates of autism are slightly lower in vaccinated kids, but no one is saying there is a causal relationship between vaccines decreasing the chances of autism. Sometimes it's a coincidence, or even due to something like someone reporting they are taking tylenol during pregnancy has generally higher levels of medical support, so the kids get more screening.
These ignorant, drug addled, fake tan soaked clowns saying it's the cause is an absolute lie, and it's the same bunch that wants to add everyone on the spectrum to a list and track their genetics in some sort of eugenecists wet dream.