The demonstrations over the Stamp Act and Tea Act tended to unleash social unrest.?

What do you see as social upheaval? Thirteen Colonies did what no other had ever done they successfully rebelled against their mother country and then they set up a totally new form of government in the form that allowed the people to rule themselves and to set the laws that would govern the people also it set up that a common person would have to be received as an equal to the kings and and popes of a the world as a equal. This then set up a revolution in France that over trough a well established ruler family and caused the death of most of the rule families of that country and caused the rise of one of only two men who would so effect history to have the change attributed to them the first is Napoleon the other Hitler. so I think that you will find that there was a major change in society after the American Revolution.

The stamp and tea act was an outrage. (for people in the 1700's)

First of all, people did not have email (obviously) and they had to write letters to people constantly. A tax on a stamp was a big deal.

People drank tea. People just drank tea. I was a disapointment for this to happen.