Oh yes, the left has never protested against the crimes of the USA

You know, you’re right. A better version of this meme would be the first world leftists complaining about U.S. imperialism when it happens… then still lining up right behind the State Department when anyone fights back.

The pure (libertarian) socialists’ ideological anticipations remain untainted by existing practice. They do not explain how the manifold functions of a revolutionary society would be organized, how external attack and internal sabotage would be thwarted, how bureaucracy would be avoided, scarce resources allocated, policy differences settled, priorities set, and production and distribution conducted. Instead, they offer vague statements about how the workers themselves will directly own and control the means of production and will arrive at their own solutions through creative struggle. No surprise then that the pure socialists support every revolution except the ones that succeed.