What would those places me? NYC, SF, LA? Cool, we have Paris, London, Berlin too. It's not about how many people from all over the world are living in the US, it's about how those represent and show themselves.
Switzerland has 4 official languages alone, for Christ's sake. Belgium is divided into 2 parts. We have/had/will have separation movements in Spain and UK, because they aren't as monocultural as you would like to paint them.