New York City is not just a city in New York state. It's the center and capitol of American and world economic activity. What happens to NYC happens to all of us.
It's not just "them" vs "us" or "them" and you. It's "We" and all Americans.
What happens to NYC happens to all of us.
Sorry to bust your bubble, but the rest of the US does NOT revolve around New York City. Truth be told, most of us wish it would succeed from the US.