Unions are the best of all the bad solutions we’ve come up with so far for labor to compete with capital. The worst of course is collectivism through government, though that’s being tried again…

The best solution is antitrust enforcement. When companies have to compete with each other for labor and customers, wages go up and prices go down. Whey they consolidate they can charge monopoly rents.

Unions often even make this worse because they'll latch on to a monopolistic employer and then lobby with them to retain the monopoly at the expense of all the workers who are their customers rather than their employees.