The people from other nations who fought and died might object to you handing all the credit to the segregationist part of America, especially when Hitler and the Nazis were directly inspired by that segregation, helping to create the situation in which they fought and died.
> both American citizenship and antimiscegenation laws proved directly relevant to the two principal Nuremberg Laws—the Citizenship Law and the Blood Law. Whitman looks at the ultimate, ugly irony that when Nazis rejected American practices, it was sometimes not because they found them too enlightened, but too harsh.
https://press.princeton.edu/books/hardcover/9780691172422/hi...
> both American citizenship and antimiscegenation laws proved directly relevant to the two principal Nuremberg Laws—the Citizenship Law and the Blood Law. Whitman looks at the ultimate, ugly irony that when Nazis rejected American practices, it was sometimes not because they found them too enlightened, but too harsh.