One important gain by the colonist after the French and Indian war is that they gained more land.
In the 1920s, many rural banks failed because banks had speculated in stocks. This in turn, led to failure of such banks and then soon after the Great Depression followed.
Yes, as this would ensure more equal representation for the US's states and all territories which is occupied without much care. These territories would be able to become involved, allowing the people more freedom and more power, creating a better living situation for themselves and therefore bettering the US as a whole by creating a new area of opportunity.