I don't agree with the notion of violent protests against anyone, including (and perhaps especially) people who have publicly advocated what was effectively a notion of GENOCIDE.

HOWEVER, this worked.

Why? Obviously, this man came out of the shadows to be more public because he felt the political atmosphere meant he was safe in a Trump world. Then this happened, and he chose then to fall back to the shadows again.
He could've used this opportunity to boost his powerbase. Now we all know he's a coward that can't stand even an iota of the things he advocated to be done to others.