You went there once. For a week. Went to tourist spots. In Manhattan. (Manhattan isn't New York. Manhattan is Disneyland.)

How the ____ would you know anything about America or Americans?

After you've lived and worked in a place for several years, perhaps decades, you'll know a place. Ask foreigners who've lived in America for five or more years. If they tell you that America is okay, they're either being polite or they're as dumb as Americans.

If you want to know what New York City is like, find the blackest or most Hispanic neighbourhood. Walk through it. At night.