anyone who thinks NYC is the most liberal city in America has never been to 75% of the neighborhoods in the city.
Because a minority neighborhood is not a neighborhood?
over half the "white" (Jewish, Italian Irish) neighborhoods in NYC are not liberal.
Keep in mind that Manhattan has more than twice as many white people as Staten Island, more white than Queens, and almost as many as Brooklyn. And that the city as a whole is only about a third white.
New York has a very high variance, granted. And if the question were city with the most left wing white people, you'd have more of a point. But as a whole, the city is undeniably one of the most liberal in the country.