LogFAQs > #967881755

From that other topic:
A better question might be that if skin color isn't relevant in the rings of power, why did the writers send the only black elf in the first episode to the only village in the show that isn't ethnically diverse, where the all white morgoth worshipping locals can hurl slurs at him and rumors of him dating a local white girl is enough for the kids to relentlessly bully her son over it, even though in lore the southlands is where the all-black Haradrim would have lived (Harad means "south" in LOTR languages). They took a black people, made them all white, then sent a black elf there to be the victim of racism so that audiences could understand how badly they hate elves.

Fantasy races are often used as allegory to explore racism. This might be the first time I've seen racism used as an allegory to explore the hatred of fantasy races.