This is because of the fact that modern society sees pedophiles an sex offenders in the same way that Nazis saw the Jews. In these days us “normal” people are the Nazis and the pedos and perverts are the Jews. We discriminate against them as strongly as Nazis did the Jews. To the point that we have them register on a list just like the Jews had to. This heavily restricted and stripped their rights like the Jews.
Supporting or allowing them on your platform would get you into as much legal trouble as a regular German did when supporting the Jews.