Teachers Unions, same for Police, Fire Fighters, etc... any type of public employee is part of the Union when they get hired, because its public money providing a public service with public money. Unions in the private sector are an entirely different matter all together and should be treated differently. One of the biggest problems is that the Unions in private industry expect to run like a union in the public sector and that is never going to work ever because the two have different goals. The goals of the private sector are profit, the goals for the public sector are service.