Take sex away from people. Make it forbidden, evil. Limit it to ritualistic breeding. Force it to back up into suppressed sadism. Then hand the people a scapegoat to hate. Let them kill a scapegoat occasionally for cathartic release. The mechanism is ages old. Tyrants used it centuries before the word "psychology" was ever invented. It works, too.
Robert A. Heinlein- I'm so busy doing what I must do that I don't have time for what I ought to do... and I never get a chance to do what I want to do! - Son, that's universal. The way to keep that recipe from killing you is occasionally to do what you want to do anyhow.
Robert A. HeinleinDelusions are often functional. A mother's opinions about her children's beauty, intelligence, goodness, et cetera ad nauseam, keep her from drowning them at birth.
Robert A. HeinleinI'll give you an exact definition. When the happiness of another person becomes as essential to yourself as your own, then the state of love exists.
Robert A. Heinlein