I don't advocate threats or violence against these people. Not only is it wrong, but we don't need to stoop to their level.
However, it's gratifying to see academics elite getting knocked off their ivory tower.
No offense, but I do not believe there are conservatives advocating or involved in hate crimes towards this jerk.
It's too common to make the claim without proof and these claims are often based on their "feelings", not facts. If these guys "feel" it, it's true. It's also called "projection," in that since they do it they assume conservatives do too. It's a lie.