They have been gradually eroded because of the republicans who have, since their growth, have been trying to destroy them. No workers rights the workers, so oops, no unions. People who object to unions and worker protest are the kind of people who have sweatshops overseas and used to use child labor. We need organizations to protect the workers. Enough with CEO's, CFO's and other upper-echelon business leaders getting by with being paid outrageous wages and bonuses. They have no conscience.