The boy, in time, is no longer a boy. He has become a teen, and then a man in his new home. He considers himself American, that this is home, rather than the place his parents fled from.
Others still think differently.
He barely speaks his native language any more, working to remove all traces of it from his voice when he speaks to others.
He changes his name to sounds more American, dresses in the style of other men his age, trying to hide in plain sight.
He doesn't tell anyone his religion, the religion of his parents and grandparents, scared that it'll cause conflict.
He sneaks off to church when he can but he doesn't pray like he used to or how much his parents do.
It's easier for him to hide the parts of his heritage that scare or infuriate others, focusing on integrating rather than standing out.