That's almost a word-for-word restatement of Marcuse's "Repressive Tolerance" essay in A Critique of Pure Tolerance, which is essentially stating that Tolerance

That's almost a word-for-word restatement of Marcuse's "Repressive Tolerance" essay in A Critique of Pure Tolerance, which is essentially stating that Tolerance is only a great good so long as it means tolerance for Marxist ideas and that no leftwingers should ever be tolerant towards rightwing views.