Is this your theory:

Freedom of expression is good, but to some extent - until the point where it ignites hatred and open, violent conflict.

If so, then I think you're mostly right. I think there's valid arguments for allowing the incitement of hatred (it's better to have those opinions out in the open is one; that it's easy to misconstrue criticism for hatred, as we're seeing in this thread). Personally, I don't like incitement to hatred, but then some would say I'm a dirty fucking hippy.