What was it about post-1763 British policy that would cause colonists in every section to see the disadvantages rather than the advantages of being part of the British Empire?

Post 1763 the policies made by the British were not liked by the colonists because there was nothing in favour of the colonists. The colonists could see only the disadvantages of being a part of the British Empire. The British used to take the raw materials from the colonies and then sell the manufactured product in the colonies at a higher rate. They also levied huge tax for the products. The industrial revolution did not bear any fruit for them. The exploitation of the colonists kept rising with each passing day.