The protesters in Wisconsin and Ohio are crying alligator tears about the loss of collective bargaining rights. Let's be clear on this. There is no right to collective bargaining. All the laws that have required collective bargaining between employers, be they public or private, with certified labor unions as the exclusive representative of employees in a bargaining unit have extended privileges, not rights, to labor unions, often at the expense of the rights of individual employees.
There are several federal court decision in cases where government employee unions have claimed the right to collective bargaining and in every instance the courts have ruled that there is no right to collective bargaining.
In the private sector the federal government gave unions monopoly bargaining powers through the National Labor Relations Act, which doesn't cover public employees. Many states have enacted similar laws covering public employment.
On several occasions public sector unions have gone to court demanding the right to collective bargaining and in every case the courts have said that there is no such right, it is a legislated privilege.
This is a topic of great interest to me. I am the author of "The Case Against Public Sector Unionism and Collective Bargaining" and a coauthor of "Vallejo Con Dios: Why Public Sector Unionism is a Bad Deal for Taxpayers and Representative Government."
I commend them to your attention.