It's not simply always good or always bad. Sometimes unions get too powerful for the general good of the population. Workers rights come at a cost to non-worker

It's not simply always good or always bad. Sometimes unions get too powerful for the general good of the population. Workers rights come at a cost to non-workers and the general population. Do you really want to ban intermodal shipping containers to protect watersiders' rights to work inefficiently? That's an example of where unions were trying to rent-seek from the rest of the economy. Newspapers had similar problems with their printers and associated workers having probably too much power through their unions. If printer/etc. unions had their way, there'd be no internet news because that "stole" their jobs and their workers rights.