Good for them, but that would never work in the U.S. because our foundation is pretty much built on multiculturalism. We say we're "American" but what exactly is that? Speaking English? Eating cheeseburgers? It says right in the Declaration of Independence everyone has the right to the pursuit of life, liberty and happiness...how vague. Considering how many different people there are think of how many ideas that can be. Kinda sounds like a catch 22. Or in other words, we all know what happens when we try to please everyone...
Interesting to read-
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. That to secure these rights, Governments are instituted among Men, deriving their just Powers from the consent of the governed, — That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness.
Looking at the U.S. of today, does that still sound possible?
Back on topic, the U.S. needs to lay a more definitive set of (common) ground rules for everyone to follow.