Most people don't live in the rural areas you're emphasizing. If you exclude cities, the US begins to look pretty homogeneous too. One out of five people livin

Most people don't live in the rural areas you're emphasizing. If you exclude cities, the US begins to look pretty homogeneous too. One out of five people living in Switzerland weren't born in the country. There are three major languages, plus a fourth national language. By any reasonable measure, Switzerland is an extremely diverse country. The amazing thing is that a country that's so linguistically balkanised is so stable and orderly.