My sense is unions make sense, but legal protections where companies aren’t allowed to route around unions are almost always quite bad. Basically whenever those were granted the unions quickly leveraged what basically amounts to a state-sponsored monopoly, but in ways that are even worse than normal state-sponsored monopolies, because state-sponsored monopolies at least tend to still try to maximize profit, whereas unions tend to basically actively sabotage almost anything that does not myopically give more resources to its members.
My sense is unions make sense, but legal protections where companies aren’t allowed to route around unions are almost always quite bad. Basically whenever those were granted the unions quickly leveraged what basically amounts to a state-sponsored monopoly, but in ways that are even worse than normal state-sponsored monopolies, because state-sponsored monopolies at least tend to still try to maximize profit, whereas unions tend to basically actively sabotage almost anything that does not myopically give more resources to its members.