From World War I to the 1950s or 1960s, the idea that factory workers in Europe, or of European descent, might take over their countries, displacing the rich/capitalists/bourgeoisie, was an idea that was people took seriously, on all sides of the political spectrum. Not only would this class take over, but be the vanguard of the change.
Does anyone think this is going to happen now?
This article indicates an opinion on that question. A class of people taking power for themselves don't have to beg for pity from a coastal professional-managerial class. It would organize itself and take power.