Comment by 3seashells

It's part of the contract cult mechanism. Human tribes for a early version of law by forming contract cults aka religions. For that sexual deviants are hearded into a group to which the family is then ritualistically exposed as a sort of hostage situation that upholds basic providing and welfare contracts. The hysteria is a social fitness signal: "I'm reliably retarded and can be used as a social building block". This is pretty cultural universal, though the cultural baggage with the contact cult may produce different outcomes.