I've come here to offer the Count some legal advice. The point of the joke was that nazism can come off really casually. Hitler was the most casual, unapologetic, habituous, obsessive anti-semite, which is the exactly what the joke seeks to ridicule. The object of the joke was Hitlerism and anti-semitism, because in Hitler's ideal world, every dog would seig heil and long for J-ish destruction. We must be able to ridicule evil ideas, so people can more easily identify these ideas as such. The Idea of casual anti-semitism is offensive, so we should be able to ridicule.
Secondly, anyone can recognize the joke of a clown dancing on a cliff. He won't fall and die, though he might pretend to, as a joke. Meechum's joke dances on the line between legal and illegal, which is a joke about political correctness. It is up to debate wether the clown 'should come off it' and stop making nasty jokes, but anyone can see that the clown is at least trying to be funny. It's only a clown.
