There's a great scene in "A Welcome to Britain" - 1943 film for US soldiers stationed in the UK - that is clearly trying to sell integration to troops:
https://en.wikisource.org/wiki/Circular_No._3591
† a few exceptions persisted in some backwater areas even after the end of the war.
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.
In other words, trying to claim any side of WWII had modern liberal anti-racist sensibilities is farcical, and that such claims so often meet no resistance only speaks to our utter historical ignorance.