Final answer:
Imposing taxes without the colonists' consent was a major grievance because it violated their rights as English subjects, ignoring the principles of 'no taxation without representation' and self-government, as highlighted in the Declaration of Independence.
Step-by-step explanation:
Imposition of Taxes without Consent
Imposing taxes on the colonists without their consent created a significant grievance because it represented a fundamental violation of their rights as English subjects. The ability to vote on taxation was a right enshrined in historical documents such as the Magna Carta and the English Bill of Rights. The Declaration of Independence listed this grievance as it was indicative of the British government's disregard for the colonists' right to self-government and democratic representation. These imposed taxes were seen as an effort to reduce the colonists' status as free men, leading to the rallying cry of 'no taxation without representation.'
Taxation without representation became a central issue that contributed to the growing discontent among the colonies. Such policies, including the enforcement of the Stamp Act and the quartering of British troops, fueled uniting protests that eventually would lead to the American Revolutionary War. The breach of these fundamental rights, which the colonists believed they were entitled to as British subjects, became a significant factor influencing their decision to pursue independence.