I have a theory about the origins of niggers.
In Tolkien's Silmarillion, he wrote that Melkor (similar to Satan) created orcs in mockery of the elves; they're essentially tortured elves.
What if the Hebrew God of the Bible made niggers to degrade the Aryan race? It would make sense because Jews have been using the sub-human species "nigger" as a tool against the Aryans for centuries