I don't deny that. But that argument literally holds NO water whatsoever in current times. Just because something worked well in the past doesn't mean it can't be terrible in the future. There are thousands of examples where an organization is around and does a whole lot of good for while, and then when you leave it around too long it starts hurting more than it's helping. Unions are a classic case of this. Unions were formed to get good working conditions, and fair wages because the working populace needed some sort of recourse against corporate tyranny. The government listened, legislated, and now those protections are built into our system. Now instead of working to fix unjust practices and create a safe and stable work environment, public unions view the government, the very organization which created and enforces those protections, as an enemy they need to collectively strongarm into giving them more money.