Hello, I am a Japanese American so I guess my answer will be based on my personal experiences. To this day, I and my family who is prodominately Japanese American feel a bit isolated from both their heritages. I don't feel fully involved with my Japanese side or my American side. A minority of Japanese Americans still deal with the seperation and displacement from their families and culture following the war but this is more prominate with older generations.
I hope this helped : )