This is what's wrong with unions. On the face of it, I think unions are a good idea. But they were given too much power, and of course they abused it.
They were supposed to make sure working conditions were safe, companies took care of injured workers, and that they were paid a decent wage with decent benefits. Many of them are something entirely different today.
Lots more here :
http://capitalresearch.org/2012/01/the-union-difference-a-primer-on-what-unions-do-to-the-economy/
"When a union organizes a company it obtains a monopoly over its jobs. The law authorizes a single union to act as the exclusive bargaining representative for employees in dealing with their employer. Businesses cannot directly hire workers. Instead they must first come to an agreement with the union over how many workers to hire and what to pay them. The monopoly gives the union the power to raise the wages of the companys employees.
For decades the Detroit auto industry offered a model for demonstrating the power of a union cartel in action. By the early 1940s the United Auto Workers (UAW) union had organized the Big Three automakersGeneral Motors, Ford, and Chrysler. The companies could not hire employees except on terms specified by the union.
Under the leadership of UAW President Walter Reuther, the UAW insisted on very generous compensation at each company. Reuther engaged in pattern bargainingtargeting one of the Big Three during contract negotiations for terms of a new (and usually generous) contract.
If the automaker would not pay, the union would strike, shutting down operations, sending business to the other two companies, and costing the targeted firm billions. So the target company routinely conceded to union demands. Reuther forced the other two automakers to accept contracts with similar terms. This strategy allowed the UAW to raise labor costs across the Big Three without putting any of the automakers out of business.
This arrangement worked incredibly well for UAW members. Until the automakers were forced into bankruptcy proceedings in 2008 their labor costs (wages and benefits) exceeded $70 an hour. UAW members enjoyed seven weeks of paid vacation and they could retire to generous pension benefits after 30 years on the job, irrespective of age. They earned more than many Ph.D. scientists."