Why were Americans angry about the British policies such as the sugar act stamp act and Townsend acts?

Americans were angry about British policies like the Sugar Act, Stamp Act, and Townshend Acts because they felt these measures imposed unfair taxes without their consent, violating the principle of "no taxation without representation." The Sugar Act increased duties on imported goods, while the Stamp Act required colonists to purchase special stamped paper for documents, effectively taxing a wide range of everyday items. The Townshend Acts further taxed goods like tea and glass, leading to widespread protests and resentment against British authority. This anger ultimately fueled the desire for independence and contributed to the American Revolution.