I am quite sure about the conclusions that capitalism never had feared Bernstein and his ilk more than Stalin and Mao. In fact it would have welcomed Bernsteinian or Bukharian revisionism in West Europe as much as it has welcomed the so-called socialist market economy and its bureaucratic-comprador capitalist politics in power in today's China. Modern
Revisionism is both class-capitulationism and social-fascism.
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Are you in a competition for the most clichés in fewest words?
Carrol