I agree with you, but I am worried that antisemitism, homophobia, and bigotry in general is the sort of thing that crops up on its own; it can't be eliminated by silencing it. Post-war Germany for instance attempted to suppress Nazism, but it's still around 70 years later.
I am totally willing to accept the theory that Germany did not suppress Nazism enough, but I'm worried that's not actually the answer.
Suppress Nazism? Lol that what our governments did after the initial denazification was the exact opposite. The early Secret Service was mainly former NSDAP personnel up until the 70s. Many right-wing groups, including terrorists (NSU! And thst's just one of them), were covertly supported and aided by the Verfassungsschutz (Office for protection of the constitution).
I am totally willing to accept the theory that Germany did not suppress Nazism enough, but I'm worried that's not actually the answer.