That might have to do more with staying in a closed subculture. When immigrants group together, they keep speaking their original language, keep the customs, pa

That might have to do more with staying in a closed subculture. When immigrants group together, they keep speaking their original language, keep the customs, pay very little attention of their new country's culture, and thus lock themselves out. What kind of thoughts you can think has little to do with it. Language is a significant part of identity.