alternatehistory.com

In the 1950s, Americans typically viewed most foreign cultures as backwards and doomed to destruction/ needing to be Americanized. I even remember a Disney book about foreign cultures predicting that progress would eliminate the cultures described in the book so readers had a reason to appreciate them.
How could America continue to have this attitude? I'm assuming some reduced form of the civil rights movement for immigrants would occur and that immigration would pick up.
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