This is EXACTLY what I despise about many liberals. And to think that is coming from someone who claims to be a civil libertarian is beyond me. Too many liberals want to silence free speech because its "anti-semetic" or "rascist". I DO NOT want to live in a place like modern-day Germany where anti-semetism and Nazism are a criminal offense.

You don't ban people for this type of stuff. You don't meet hate speech with banning and restrictions, you meet hate speech with "good speech". Tell him how he is wrong, and expose his ignorance to the world. Afterall, if we were to ban him, then you would have to ban Jefferson and Alias for saying that type of stuff about Muslims, but of coarse you don't care about that because you're biased against one form of speech.