Every single human institution or organization of any size has its bad points. Corporations certainly do. The military does. Organized religion does. Academia does. The media does. The financial industry sure as hell does. But with the exception of a few extremists here and there, nobody uses this as an excuse to suggest that these institutions are hopelessly corrupt and should cease existing. ...
Unions are the most common big exception to this rule. Sure, conservatives will take whatever chance they can to rein them in, regulate them, make it nearly impossible for them to organize new workplaces. But they also routinely argue that labor unions simply shouldn't exist. This is what's happening in Wisconsin: Gov. Scott Walker isn't satisfied with merely negotiating concessions from public sector unions. He wants to effectively ban collective bargaining and all but do away with public sector unions completely.
Nobody should buy this. Of course unions have pathologies. Every big human institution does. And anyone who thinks they're on the wrong side of an issue should fight it out with them. But unions are also the only large-scale movement left in America that persistently acts as a countervailing power against corporate power. They're the only large-scale movement left that persistently acts in the economic interests of the middle class.
... the decline of unions over the past few decades has left corporations and the rich with essentially no powerful opposition. No matter what doubts you might have about unions and their role in the economy, never forget that destroying them destroys the only real organized check on the power of the business community in America. If the last 30 years haven't made that clear, I don't know what will.