The Stamp Act, Tea Act and Intolerable Acts were put into place without the consent of the colonists. This proved that Britain was not treating them as citizens, but merely as servants to their mother country.
The Americans realized that Britain was not going to stop enacting laws in the colonies this way, and they knew that secession was inevitable.
The answer is that they were the expression of the consumerist culture of the period.
In the 1920s Ford dominated the automobile industry with its consumerist policies and thinking. Movies were also seen as products at the time by the studios that held the power in the movie business. That is why both of them were the reflections of the consumerist culture of the 1920s.
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.
