Here's how I look at this cartoons/free speech vs hate speech thing:
Over here, many Aboriginal (first nation) people object to photographs of dead relatives being shown, due to their religious beliefs. This is pretty much respected in our media, TV stations even give warnings of possible offense to the aboriginal community when a news story or doco shows people who have since died. It's just respectful, so that's how it is.
Now imagine if I saw this as a vast point of angst against freedom of expression/speech, and set up a tent in the middle of Arnhem land (or any other large aboriginal community) plastered with photos of people who have passed away, just to make a point.
What kind of reaction could I expect? What kind of reaction would I be -seeking- by doing such a deeply offensive thing?
The irony is, many of the same people who'd fry me for pulling that stunt, would cheer me if I did what these racist idiots were doing over there in the USA.
I am NOT saying anyone deserves to be attacked for voicing their opinions. I am questioning where the line between "free speech" and "hate speech" is drawn, both in the law and the minds of the public. Especially where it's clearly set up to incite anger.