Many colonists protested the Stamp Act because

they believed it was a violation of their rights as English citizens. They argued that they should have representation in the British Parliament if they were going to be subjected to taxes. This belief was summed up in the famous slogan "No taxation without representation." The colonists also resented the fact that the tax was being imposed by the British government without their consent. Additionally, the Stamp Act affected a wide range of people and businesses, including lawyers, merchants, and printers, who relied heavily on paper products. The act was seen as a burden on the colonial economy and sparked widespread protests, boycotts, and acts of resistance. These protests eventually led to the eventual repeal of the Stamp Act in 1766.