Ebbie the War of Independence had S.F.A. to do with any of the popular reasons given for it {Taxation without representation - to use your own word SHEESH - the Colonists in America were subsidised to the hilt and paid only 1/27th of the Taxes levied on their counterparts in the UK - Source Nail Ferguson Professor of History at Harvard University}. By the time of the Seven Years War the French had completely boxed in the British Colonies in America blocking all hope of any further westward expansion for a group of colonists who were "land hungry". AFTER the Seven Years War those colonists had two potential avenues open to them to expand westward - through Canada or into the Ohio and Wabash Basins. The latter was the easiest but that was blocked because of treaties made between the British Government and the Native American tribes who had assisted the British to defeat the French. Your War of Independence was a way to break free from the constraints of that treaty - I do not think that the US Government from that day onward ever honoured a single treaty that it made with any of the North American tribes.

In 1812 the Democratic-Republican Party, under Madison who drove the War, "favoured a weak central government, preservation of slavery, expansion into Indian land, and a stronger break with Britain."." - the land grab in this case was to drive the British from North America completely - that along with other later attempts failed.