The New Left does not portend a revolution, as its press agents claim, but a Putsch. A revolution is the climax of a long philosophical development and expresses a nation’s profound discontent; a Putsch is a minority’s seizure of power. The goal of a revolution is to overthrow tyranny; the goal of a Putsch is to establish it.
Tyranny is any political system (whether absolute monarchy or fascism or communism) that does not recognize individual rights (which necessarily include property rights). The overthrow of a political system by force is justified only when it is directed against tyranny: it is an act of self-defense against those who rule by force. For example, the American Revolution. The resort to force, not in defense, but in violation, of individual rights, can have no moral justification; it is not a revolution, but gang warfare.