I've read a blog by a far left nutjob who is also stockpiling weapons, ammo medical supplies etc, who lives on a small farm, and often goes on long rants about he can't wait to "shoot the tea baggers" and goes on about his love for mass murdering terrorists like che guevara.
I believe not only would he actively go after people who he deems "counter-revolutionary", to take what they had and "spread the wealth for the good of the people", but would probably try to form some kind of death squad. These are the kind of people who like signs that say "we have found new homes for the rich" and it shows a picture of a graveyard.