Why were the colonist upset about the new taxes that great Britain passed prior to the amercian revolution?

Colonists were upset about the new taxes imposed by Great Britain because they felt it violated their rights as Englishmen to be taxed without representation in Parliament. The phrase "no taxation without representation" became a rallying cry, emphasizing their belief that only their own colonial assemblies should have the authority to levy taxes. Additionally, many colonists viewed these taxes as a means for Britain to exert control over the colonies and limit their autonomy, leading to growing resentment and a desire for independence.