What specific right in the English Bill of Rights were the colonies most upset was being violated?

The colonies were particularly upset about the violation of their right to representation, which is encapsulated in the principle that there should be no taxation without representation. The English Bill of Rights emphasized that taxes can only be levied with the consent of the governed, and the colonies felt that their lack of representation in the British Parliament undermined this fundamental right. This grievance was a significant factor leading to colonial unrest and ultimately the American Revolution.