Earlier quoted context omitted.
It took 40 years for growing antisemitism in Europe to lead to the Holocaust.
Good thing forum moderation can help nip such antisemitism in the bud by deplatforming those trying to normalize it in the 21st century.
Plus, don't be so naive as to think anti-semites will directly say "we should gas the Jews". They won't say that, because they know they'll get banned. They'll say the closest thing they're allowed to say.