I would term it "Neo-Bolshevik Thuggery," but details, details...
John Nolte at BG rightly asks, "When Will Obama, Democrats, and MSM Call for Civility?"
Short answer: only when it suits their political narrative.
And WJ at LI inserts the obligatory 'what if the TEA Party had done anything remotely as vile as these neo-bolsheviks?' here.