Necessarily then, Marx’s and Engels’s theory of revolution was insufficient in scope: the European proletariat and its social allies did not constitute the revolutionary subject of history, nor was working-class consciousness necessarily the negation of bourgeois culture. Out of what was in reality a rather more complex capitalist world system (and one to which Marx in his last decade paid closer attention), other revolutionary forces emerged as well. Informed as they were by the ideas and cultures drawn from their own historical experiences, these movements assumed forms only vaguely anticipated in the radical traditions of the West.

Cedric J. Robinson, Black Marxism_ The Making o…, loc. 148