Bobert, while most of the violence in this country against public officials has been, as far as we know, done by right-wingers, not all of it has.   Squeaky Fromme and Mary Jane what's-her-name weren't right-wingers, nor was the paranoid Ted Kaczynski.    And The Weathermen, who were planting bombs back in the '60s weren't "conservatives" either.

No one side of the extremes of political views has a lock on assassinations or other politically motivated violence, much less the violence of the insane.

I agree that most of what we've heard in recent years about "watering the tree of liberty with blood" or putting political opponents "in the cross hairs" or resorting "to second-Amendment remedies" if the ballot box doesn't produce the desired outcome have come from the "right," but that doesn't mean it's basically a left-v.-right wing issue.