Perlstein vividly recounts the violence the right adopted when young people who would be drafted to fight began to question the Vietnam war.
As in violently segregationist neighborhoods (in the South, but also in the North), it wasn't the left that turned to violence in the 1960s, until much later. (Full disclosure: I was in that march in Oakland and knew the Voluntown folks. These were not, then or ever, violent people.)
This bringing your piece to the party practice is about intimidation. It's got nothing to do with free speech or democracy -- it is a naked effort to impose, by threat of force, a minority point of view that was rejected at the last election. E.J. Dionne hammered home this truth in a recent column.
If there is no Constitutional way to outlaw people carrying assault weapons to threaten other citizens with whom they disagree, this country is pretty far gone. Under the last administration we got to see a lawless government; under this one, we're getting to see a lawless minority faction of disappointed bullies trying to bust up the country out of spite. Can we find a way to stop them that doesn't itself escalate into violence? We better...