Yes, an excellent analysis. I lived through a good bit of the process, especially Marcuse.
Cultural Marxism is a culture of suspicion and resentment, which goes far to explain why these folks are angry all the time. Suspicion, resentment, and devotion to destruction are not good for your mental health.
From the Counterculture this came back into the universities and took them over, then from the universities into politics, where almost the entire Democrat party was taken over. Even the cultural establishment has now signed on, so if you visited a yacht club or a country club in the rich coastal states last fall you would have seen nothing but Kerry/Edwards bumper stickers.
That's because cultural marxism not only criticizes power, it seizes power, and these cultural elites all know which side their bread is buttered on. They are almost a an American Nomenklatura.
Every informed Freeper should become acquainted with the FRANKFURT SCHOOL and the mischief it has done.