Alexander Hamilton is less concerned in Federalist Paper No. 11 with the philosophy of governance than with strategy. It comes down to a question of size:
...in a state of disunion... It would be in the power of the maritime nations, availing themselves of our universal impotence, to prescribe the conditions of our political existence...they would combine to embarrass our navigation...and confine us to a passive commerce.
Hamilton has an eye to the future. In 1787 the America he spoke of consisted of 13 states occupying the eastern-most part of a much larger land mass. The balance of that land was colonized by Spain, France and Britain. It held tremendous untapped resources, had excellent access to the Atlantic Ocean, and useful interior waterways for transport, like the Ohio, Mississippi, St. Lawrence, and Great Lakes. Hamilton could see that the European colonizers were wary of potential threats by this upstart to their commercial and navigational domination. He could envision the potential for a union of states to become a prosperous player through trade.