The colonists had a problem with the Tea Act of 1773 because A. they saw it as the British government giving the East India Company a monopoly on the tea market in the colonies.
Therefore they organized the famous Boston Tea Party which prolonged the war.
American factories were to produce goods to support the war effort and almost overnight the unemployment rate dropped to around 10%.
They had a lot of heavy taxes on almost everything. and the colonist couldn't keep the profits