&gt; Also before WWII, anti-semitism was much more widespread in the US than after it.<p>Exactly. And this is what Hollywood has been rewriting the whole time in WW2 movies, to make the US seem like the good guys against the Evil Himself, while the reality at the time was way more nuanced.<p>On top of that, the horror of the concentration camps was not well known to the public during the war, and was mostly a post-war phenomenon (with many folks not believing such stories at first, until the evidence became overwhelming).