Because they aren't doing science. Science involves keeping an open mind to try to figure out what the evidence is telling you. The telltale signs that they are

Because they aren't doing science. Science involves keeping an open mind to try to figure out what the evidence is telling you. The telltale signs that they aren't doing science are especially evident when you listen to the kinds of things they present as evidence. A propagandist says: autism surged so we must fix our society. A scientist says "did autism increase, or just how often autism is diagnosed?" I don't have to study a lot of data to see that they're purposefully not asking themselves that question. Instead they seem to hope their listener is not aware that medical criteria in diagnosing autism loosened vastly over the period of time. By ignoring the big change in the word, they can instead sell you the idea of a big change in the world. Again it happens with Tylenol. There's a question of cause and effect. They see this number that says that there's correlation between Tylenol use and autism. But Tylenol use also correlates very highly to being in awful pain, so it turns out that being in awful pain "causes" Autism to the exact same degree that Tylenol does. But RFK isn't interested in this distinction, immediately pointed out by anyone whose goal is actually to determine what the evidence we see might be telling us about reality.