Diversity in what way? Because if it's diversity of people then I don't want Britain to be diverse.
If it's diversity of landscape, then Britain wins hands down. There's no other country of similar size that has as much geographical diversity as Great Britain. Britain is far more geographically diverse than Arizona.
Nothing wrong with Britiush food. It's the greatest food in the world. It's certainly far better than American food.
There is no American food. So you are better than nothing.