I was born in the U. S. , my wife was born in Mexico and emigrated here when she was in college, and my daughters were born in New York City. That makes them passport-carrying, natural-born, eligible-to-run-for-president Americans. But they're also Mexicans and they like that just fine.
I remember harrowing episodes. People who emigrated, people who didn't want to emigrate. . . Many Muslims didn't want to leave India to go to live in Pakistan, but the propaganda was that there they'd have greater opportunities and so they left. Many Hindus, on the other hand, didn't want to stay in Pakistan, but they had ties there or property and so they stayed.
We emigrated to South Africa and later to Canada so I went to school in several places.