Earlier quoted context omitted.
I'm out of the loop--was he directly inciting action against the parents?
He was accusing the parents of aiding a conspiracy to stage a fake shooting. I can imagine being a parent who has just lost a child, only to be told that I was lying, and that my child either never existed or was still alive. It's a real ideological litmus test - exactly how turned can your stomach get before you call for an exception to free speech?
But I certainly don't think anyone should be forced or required to give him a platform for which to broadcast his speech.