This is the same dilemma that 1st generation Indian immigrants also struggle with. Sir V.S. Naipaul compares it to being 'Shipwrecked'. You've arrived at a new land where you don't know anyone and build your life from scratch. You spend enough time here, but still don't "fit in" to the culture because you did not grow up here. Festivals are alien (ex: Halloween), holidays are alien (ex: Thanksgiving Day). You hit ceilings at work because the promotions in corporate america are mostly reserved for white men in their 40s. Your kids grow up here, and experience High School, Prom, College, Internship and such, and they have no idea what you are talking about when you say you miss the homeland. You can't leave either, because you've put down roots, probably had some kids, and back home, things have changed dramatically, and even if you go back for good, you don't "fit in" there either, because you are always treated as the "NRI" - Non Resident Indian.

So after a decade or two,you are neither here nor there, essentially "shipwrecked" in America.