Public unions have been a 50-year mistake. A crucial distinction has been lost in the debate over Walker's proposals: Government unions are not the same thing as private sector unions.
Traditional, private sector unions were born out of an often bloody adversarial relationship between labor and management. Meanwhile, government unions have no such narrative on their side. The argument for public unionization wasn't moral, economic or intellectual. It was rankly political. Private sector unions fight with management over an equitable distribution of profits. Government unions negotiate with politicians over taxpayer money, putting the public interest at odds with union interests.