I'm not just talking about manufacturing jobs. Unions are involved in every business they can force their way into.
In 2003, full-time wage and salary workers who were union members had median usual weekly earnings of $760, compared with a median of $599 for wage and salary workers who were not represented by unions.From here.
Why shouldn't workers get the best for themselves. It's okay if a CEO takes millions from a company in compensation but let some guy/girl who is the backbone of the company want more and you are ready to hang them.
In 2003, 12.9 percent of wage and salary workers were union members, down from 13.3 percent in 2002. The union membership rate has steadily declined from a high of 20.1 percent in 1983, the first year for which comparable union data are available.
Union participation is at the highest levels in government. How come none of you blast the police, firemen and teachers about their unions?