A cause was that Texas declared its independence from Mexico. It changed the U.S. by the U.S. gaining California, New Mexico, Utah, Arizona, Colorado and parts of Wyoming.
When Prussia was hit by famine in 1744, King Frederick the Great, a potato enthusiast, had to order the peasantry to eat the tubers. In England, 18th-century farmers denounced S. tuberosum as an advance scout for hated Roman Catholicism. “No Potatoes, No Popery!” was an election slogan in 1765. France was especially slow to adopt the spud. Into the fray stepped Antoine-Augustin Parmentier, the potato’s Johnny Appleseed.
Lester Frank Ward, an American sociologist, botanist and
paleontologist believed that one of the government’s primary roles was to
protect the citizens from robber barons by regulating these big businesses. He
talked about it in his published 2 volume work Dynamic Sociology.
The American colonists wrote the Declaration of Independence in part because they taxed the colonists without their approval.
I would go with john locke