A few weeks ago I saw a movie about Ron English a billboard graffiti artist. Ron, a New Yorker, replaces existing billboards with his own graphics. The real artists in the film are the Billboard Liberation Front, a San Francisco group that selects large freeway billboards, not just ground level innocuous ones. I patiently sat watching dozens of messages, all stupid, all Lefty Fundamentalist nonsense.
I left the theater realizing that the American version of Lefty Fundamentalism is contentless. It is merely a badge of rebellion and highly contextual.
Think about a person wearing a Che Guevara t-shirt. It says rebel in much of the U.S. but in Miami it means you are looking for a fight. In Cuba it means you support a fascist regime.
The same goes for wearing a Stalin t-shirt in Poland, Hungary or the Czech Republic -- it means you support a murderous tyrant. Rebels in Germany wear some version of a swastika while in France or Belgium it will still get you killed.
Rebels need a symbol of their rebelliousness but strictly in context. In the U.S. it is Che Guevara and the whole package of Lefty Fundamentalism. Rather obvious but the point is that Lefty Fundamentalism is contentless except as a badge. That badge only has meaning in the U.S.