Labor unions are pretty much useless in helping the working class liberate itself from Capitalism. The AFL-CIO under George Meany organized the Hard Hat Riots for Nixon, for instance. Unions basically exist to divide the working-class into strata and cartelize labor. They will not exist in Communism.
This isn't only my view. Per Marxist professor Paul Mattick:
https://www.marxists.org/archive/mattick.../lebel.htm
This isn't only my view. Per Marxist professor Paul Mattick:
Quote: just as capitalism will not abdicate of its own accord, the existing labor organizations will try their utmost to keep control of these social movements and direct them towards goals favourable to themselves. In the “best” case-should they fail to help secure the status quo-they will direct a possible revolutionary upheaval into state-capitalist channels, in order to maintain social production relations which would not only allow for their further existence, but would also transform their organisations into instrumentalities of a modified capitalist system, and their bureaucracies into a new ruling class. In brief, if anything at all, they would attempt to turn a potential socialist revolution into a state-capitalist revolution, with results such as are represented by the so-called socialist nations.
https://www.marxists.org/archive/mattick.../lebel.htm