Because western democracies wanted to avoid war at all costs, wanted peace, hoped that a strong Germany would stop growth of communist Russia, wanted to avoid foreign affairs or felt it was not their business.
Well, mercantilism is when the colony is only made to support the mother country. In this scenario, the mother country is Great Britain and they are benefiting off of the colonies in America. America doesn’t want to only benefit England, but they want to be independent. That was tension enough.
B. The colonists should separate from Britain because Britain does not protect the colonists' rights