What would Karl Marx think of his latter-day disciples in the Democratic Socialists of America? No doubt he would find their politics largely agreeable, but they would present him with a class conundrum. DSA is not a movement of workers but of people with intellectual credentials: some 80 percent of its members have college degrees and 35 percent have advanced degrees. Those credentials are all granted by the institutions that capitalists sustain – it’s not bricklayers who endow Harvard University. State colleges and universities depend on government funding, but government itself, under capitalism, is simply an instrument of business interests....