re: #405 Nyet
Then you punish them for this incitement, not for being idiots about the Holocaust. It’s pretty simple IMHO.
Incitement is very difficult to prove. (That’s why Bill O’Reilly is not in jail for incitement to murder.)
Unless you can show a direct connexion (someone yelling at a rally to attack the police, say, followed immediately by an attack on police), you can’t prove it.