“By the 1990s, it was no longer possible to speak, with any intellectual integrity, of a Soviet Union of Stalin as having been informed by a ‘proletarian’ economic system, or possessed of a ‘working-class’ government. No more credence is invested in the Stalinist, Maoist, or Castro ‘proletarian state’ than was invested in the ‘proletarian’ character of the ‘German National Socialist Workers’ Party’ or the ‘Fascist State of Labor.’”