Unions are a massive cashcow for left-leaning parties, whose policies give the unionized workers a monopoly on private sector labor spending in key industries,

Unions are a massive cashcow for left-leaning parties, whose policies give the unionized workers a monopoly on private sector labor spending in key industries, e.g. the establishment news media, and public sector spending in the case of public sector unions. See campaign contributions to the Democratic Party by industry in the last election cycle: https://www.opensecrets.org/elections-overview/industries?cycle=2020 https://www.opensecrets.org/elections-overview/industries?cy... Unions are fully embedded in the establishment, to the point that the only thing that kills them is the contraction/bankruptcy of the industry they colonize. Look at Detroit: it was the richest city in America in 1950. Within 40 years of the UAW Union taking over the Big Three automakers (membership rose through the 50s and 60s, peaking in 1979), the big automakers have lost their market dominance, and Detroit is a shell of its former self.