Belz...
Fiend God
There isn't anything wrong with it, it is covered by free speech, if you take issue with someone advocating genocide that is your problem and makes your a bad person. The only thing you can do is ignore them and hope their followers set outside the law and then maybe you can do something. Otherwise you are in the situation like those good american christians who helped set up death to homosexual laws in africa. Bad people maybe but not really bad enough to do anything about.
Yeah that's the whole idea of free speech, but that doesn't mean that there's nothing wrong with advocating genocide.
Tell me, where do you stop censorship of free speech? What is allowed?