As an Army I think the fandom was being very over sensitive about the situation and it's very petty to ruin a tv show's ratings over something so minute as this. This is what makes other artists/celebs scared to even talk to BTS/work with them bc toxic Armies do these things. He was not making a racially motivated comment, he said it was "unusual" meaning "unprecedented". It's literally not a common thing for a pop boy band to perform at the UN, he was simply stating a fact in a way that worked for a comedy show. Everyone leaving 1 star reviews needs to grow tf up.
James Corden show is amazing, love watching it all the time!