Inherent in hierarchical structures, yes, but unions don't have to be hierarchical. See: https://en.m.wikipedia.org/wiki/Anarcho-syndicalism https://en.m.wikipe

Inherent in hierarchical structures, yes, but unions don't have to be hierarchical. See: https://en.m.wikipedia.org/wiki/Anarcho-syndicalism https://en.m.wikipedia.org/wiki/Anarcho-syndicalism There are numerous such functioning unions throughout the world. Small compared to bureaucratic unions, most under various forms of state repression, but very successful and effective in labour struggles they participate in.