Red Meat,
Left wing terrorists are usually part of a gang. Ted Kazynski, aka "The Unibomber", was the only "lone wolf" commie.

Billy,
Bill Ayers, former leader of The Weathermen Gang, is a white person. So too were most of the hippies that made up the rank & file of the Left Wing terrorist groups like The Weathermen, SLA, Red Brigades, Baader-Meinhoff, and ect.

It does not change the fact that there is a 'Clash of Civilizations", and that terrorism will most likely come from muslims of whatever race they might be. (Islam is a religion, not a race).