Having interchangeable scapegoats seems to be a deep need for homo saps. Someone to blame things on when they don't go right. It cannot be THEIR fault you see. It is always the fault of "the other".
If we could just rid ourselves of "the other" all would be fine and good and calm and peaceful.
"The other" shapeshifts over time. But there is never a time when it goes away. There is always someone to hate blame. Isn't there?