AUTISM.
Those saying otherwise are delusional, which alas means you can't rationally debate with them. You either have to put up with being annoyed by their delusions, or if they are causing too much cost to the sane you have to squish them. Although letting many types of mental illness roam free is currently 'politically correct', there used to be a common term — dangerous lunatic — applied to severe cases for which society then embraced action. The current PC approach is to wait until they're proven to be dangerous lunatics, then call for gun control. But then PC is also another delusion. Society can stand some individuals who are PC or who are anti-vaccination, but those organizing, encouraging and promoting such delusions are more dangerous.
'Lazarus Long' wrote "Stupidity cannot be cured with money, or through education, or by legislation. Stupidity is not a sin, the victim can't help being stupid. But stupidity is the only universal capital crime; the sentence is death, there is no appeal, and execution is carried out automatically and without pity." I'd argue that anyone trying to block execution of said sentence is guilty of the same and deserves the same sentence.
A lie.
In the war against disease, you are on the side of disease.
PROVEN...totally false