Final answer:
Alexander Hamilton advocated for the ratification of the Constitution in New York by countering Anti-Federalist views and emphasizing a representative democracy over a pure democracy. He played a central role in the state's compromise that led to New York ratifying the Constitution and later accepted amendments for a federal city's location, contributing to the foundation of the United States.
Step-by-step explanation:
Alexander Hamilton addressed the concerns of New Yorkers during the state's ratifying convention, which illustrated the divide between Federalists and Anti-Federalists. Hamilton argued against the Anti-Federalist assertion that a pure democracy would be the best form of government, which was deemed impractical. On the contrary, he believed in a representative democracy with a balance of power, similar to what represents the United States today.
Moreover, Hamilton managed a brilliant campaign to urge New York to ratify the Constitution, which narrowly succeeded. This involved both threat—suggesting that commercial downstate areas might separate from upstate New York—and conciliation—agreeing that amendments could be added post-ratification as done in Massachusetts.
Amidst political turmoil in New York after James II was deposed, and during Leisler's Rebellion, Alexander Hamilton stepped in as a leader who focused on compromise and unity for the state's future. This was further exemplified when Hamilton worked out a compromise regarding the nation's capital, leading to the selection of the District of Columbia.