> A clear example of how destructive unions can be, take a look at police unions that regularly protect bad police. You see that across the board. I've known te

> A clear example of how destructive unions can be, take a look at police unions that regularly protect bad police. You see that across the board. I've known teachers in the teachers union that obviously phone it in every chance they get But I think the counter argument here would be that for every bad cop/teacher that get away with something due to some shenanigans of a Union, there’s cases also that the same Union provides a platform for someone innocent to not get fired. Let me place another perspective regarding why some unions are necessary that is for airline pilots. This is a classic case where you have a monopoly of workforce (qualified pilots with specific knowledge with low job transitivity) and workplace (exists in some specific location just a few airlines). In a hypothetical situation where the airlines start to enforce increase in working hours, reducing rest, and place strain on the workforce; the Unions has the organisation and power to balance that relationship and in some of the cases to help to shape the minimum regulation for the work conditions. In those situations with dual-monopoly and low job transitivity of the workforce I think make sense to have Unions.