This is just dumb. If you want to immigrate to a different country, at least partially segregate. As someone mentioned, abide by our laws, culture, and holidays. And that's not me trying to turn you into a complete 'white washed' individual. We have Chinatown, Little India, Little Italy, etc. for a reason. Those are some places I'd understand having only ethnic languages for signs/advertisements.
EDIT: Since everyone else is doing this, I'm the son of an immigrant as well, born here however. Good to see most of us agree!