Of course New York is a great food city, and a world-class one at that. First, we have a much deeper local food culture than just Italian-American and Ashkenazi.
West African cooking in the Bronx and Harlem. Staten Island's Sri Lankan restaurants. Astoria's Greek and Egyptian communities, to name just a few. America is young, we don't have 500-year-old soba shops. But after decades, these places are also very much part of the fabric of the city. I don't want to get Leffed off of this board, but there are excellent meals to be had even if these restaurants care more about serving their neighborhoods than Michelin.
Now I wish we had a Sri Lankan Atomix.
Secondly, while I don't travel a lot, I have recently eaten French food in Paris. Parisians certainly get a better value as far as price to quality is concerned when talking about mid-level upscale dining. I think that was kind of JTF's original point? And look, Le Chateaubriand is better than Contra and Wildair. At least we have Contra and Wildair. To Sneak's point, I actually do think Aska and Atomix would rank high anywhere in the world...but admittedly, my world dining experience is relatively limited.
I also ate affordable-ish modern Korean food in Paris at a place that was very good, but nowhere near the level of Atoboy. The host was also just not nice. Really cold in turning us away the first night. Then, when we returned, I had one of the weirder restaurant interactions in my life, when I tried to switch one of our backless stools for another empty table's chair and not only did she scold me, she actually almost ripped the chair out of my hands. Apparently the tables are set like that on purpose, with two backless stools and two seats with backs. Anyway, it was jarring, and we debated leaving but it was late. Someone in my group very nicely told her that we felt her treatment was kind of rough and she kind of relaxed after that and apologized. In the end I was happy we stayed.
One last thing about the greatness of NYC food: we have two great MFF examples right here. I'm reasonably confident that any city in the world would be more than happy to have a Mekelburg's or a Foxface set up shop.