I've been totally adapted to life here, or 100% Americanized. I don't go to China or celebrate Chinese holidays nor eat Chinese food (my body can't take it, my religion won't allow it). I have diabetes, most of the Chinese food is carbs+fat.
I have converted to Judaism, pork and shellfish are prohibited. My husband and I have very few differences in language or cultural background. We both served in the U.S military and graduated from colleges here. We eat the same and shout the same profanity and swear the same. The only difference is our personality and our opinion about kids'education. He's a saver and thrifty, I'm a spender. He doesn't care about children's academics, I do. I have a passion for classical music and I let my children play different instruments at the local youth orchestra. I book them lessons for math tutoring. Then I decided to send my older son to a private middle school. He wasn't very thrilled about all these, because to him zero spending on children is the best way of spending money. He disagrees even when we go out to a kids'bouncy park or paint pottery. He would rather put money on home improvement or mutual funds, pension. So we have a lot of clashes, but I don't think it has anything to do with our nationalities. If I were born Chinese, there would be problems too. Maybe another set of problems. Couples are not raised the same way.