I just lived in America for a while (I'm planning to go back) but I've seen people with African dress (immigrants obviously). I think this multicultural thing applies to immigrants and/or immigrant descendant. During my time there I've heard English and Spanish mostly. I think Spanish is going to be adopted as a 2nd language in some areas if I'm not mistaken. And you see many muslim women wear niqabs (even after 9/11). What I'm trying to say is that multiculturalism is not just someone wearing rumal etc... American culture was founded by diverse cultures.Even though they're both European, you can't say French culture is the same as German culture. You can't say catholics are the same as Protestants. More broadly African American culture, Asian American culture, European American culture, have it's differences. But they have all something in common.