Tolerance towards rabid intolerance doesn't make sense. It's like asking a cannibal to be a good boy and say his prayer before he eats you.
And Americans shouldn't be on a high horse on that topic. The laws against hate speech in Europe are tame compared to what Americans do with Muslim terror suspects. At least our neo-Nazis get a fair trial and their rights are respected when they get a punishment, we don't let our executive systematically kidnap them from the streets, extralegally detain them, torture them and deny them a lawyer without any court ever being able to rule against it.