But, in the late twentieth century, it became more important to many leftists to save Third World culture, no matter how barbaric, from neo-colonialism, than to support equality and democracy. People on the left would defend brutal dictators (Castro, Mao, Pol Pot, Khomeini, et al.) simply because they opposed Western imperialism. As a result, all politics that were derived, no matter how loosely, from Marxism, lost credibility, and finally died in 1989. This was naturally a disaster for communists and socialists, but also for social democrats, for they had lost an ideological basis for their idealism. And, without idealism, politics becomes a form of accounting, a management of purely material interests.
Ian Buruma What's Left After 1989?