But a statement that even in the most serene, pampered, privileged scenario possible, people are capable of making each other miserable, making themselves miserable, having personality disorders and mental illness, being total pains in the ass, etc.

IMO It's kind of a horror/tragic statement on the human condition...watching how unappreciative these people are of where they are and what they have is a basic concept but its explored with a great amount of nuance and depth