One more thought....
My father came to this country at around age 19 as a refugee from Hitler. Your personal status in his birth country did not determine merely economic status, or to what school you could go, but whether you were put to death or not.
Upon his arrival here, my father tried to get into the US Army to go back to Europe to fight in WW II. But, he wasn't a citizen, couldn't speak English too well, and had bad knees and poor eyesight. The army turned him down. But, by 1943 his English had improved some and he tried again and was whisked into Texas for a 2 week citizenship training thing, got his US citizenship, and shipped out to Europe. He became a sergeant and the fact that he could speak German and French was useful.
Many years after the war he noted to my brother and me that one thing he could not understand- We were there to fight racism. Why did we have a segregated Army?