Generally speaking the best food tends to be food brought in by immigrant communities. I suppose in the USA that would mean all the food, apart from that of the Native Americans. With that kind of range there must be some pretty good food there.

But I can't imagine seeing food as the main thing about any visit to a foreign countrty, That would apply to England more than some place, but the same would be true of some other fascinating parts of the world where people probably tend to think of food as fuel to get you by, while you enjoy yourself in other ways; for example the Netherlands and the Czech Republic. Interestingly enough, three places where the beer can be outstanding.

And no, you don't need to stick to the micro-breweries to get good beer in England, though there are a lot of them now making great beer. Nothing wrong with a number of medium and small breweries, such as Adnams and Ridleys and a fair number more. Not as many as there were one time, but that's how it goes.