True, the US Congress was active in implementing labor related legislations. President Theodore Roosevelt gave importance to the labor unions are needed to help on the collective bargaining agreements between employers and employees. The effects of The Great Depression were hard for the workers, it is a call of their duty to act on it.
Basically it kept the colonies from expanding trade, and in turn kept the colony from expanding and getting new things. England saw the colonies as a threat, and did not want them to grow into another superhero in a new land.