Expanding the analysis from "proletariate" to "producer" eliminates much of the 'historic' aspect of this piece.  (IMO, of course.)

In the US the trend has been for various groups to lock-in a small segment of the total economy for the benefit of themselves.  Industrial workers have the AFL/CIO; doctors have the AMA.  When doctors realize they have much more in common with the industrial worker - and visa versa, it's maddening to say - than they have with the parasites and bosses THEN we will see something.  

It's the same old, tired, game.  How do 4 people control 12 people?  Divide them into 4 groups of 3.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre