I hope that Bernie Sanders gets the unions going in industry and business as they were in the 1950s--but without the corruption.
The Middle Class really has no spokesman, except to rely upon some autocrat-populist who seeks their vote, no matter how he enriches his set of cronies and himself (which he seemingly regards as "none of their ((i.e., the voters')) business!"
Some analysts have contended that the unions can't stand up to management because of immigration. The companies keep wages down by hiring the foreign-born immigrants. And it is true, seemingly, that in Japan as well as in the US, wages in factory jobs are kept down by hiring those that don't speak English or some other native language.
I took a temp job over one Christmas season with a company that hired both English-speaking and Spanish-speaking workers. Trouble was that once a supervisor was hired that preferred not to speak English, gradually workers under him were no longer speaking English either, and finally, all the English-speakers left. We had little choice in the matter. Go on construction sites; and many times you'll find they're hired as a team--yep, a group of Latino workers.
With the union label no longer attached to workers in a plant, a wage-earner may feel a loss of identity. He can't stand up to the giant of his corporation. He wants a voice--ah, "That's my man!"--his politician. He looks the other way at the deeds the politician may be doing, nefarious though some of these might be; so long as he's working and making money to pay his bills. Sadly, he may be impervious to the harm the working there might be doing to his health in the long run (like in professional football or in boxing).
Bernie, help the worker in search of his own self-identity!