"I went down to the Mission to get some Mexican food, because there is absolutely no good Mexican food in New York. None."

Wrong. Sunset Park in Brooklyn has excellent Mexican food. I say this as a person who recognizes the insane subjectivism of "good" Mexican food. Books could be written on how Americans judge US made Mexican food and I really do think there is no deterministic way to understand what goes into each persons position on what is good and not good when it comes to a burrito or enchilada.

But I will say this; if you go to Sunset Park in Brooklyn NY, you will find quality tacos and tortas. Probably the burritos won't be as good, but I personally find the burrito to be an uninspired dish. I've had good enchiladas and excellent tamales in Sunset Park, too.