Utilitarianism is a collectivist ideology where "the greater good" is used to justify violence against individuals. It is inherently evil.
okay, so people must not work together?
Individuals naturally try to maximize their happiness, but once this becomes mobs of people trying to maximize happiness for everyone else, it simply ends in disaster.
okay, then argue against the rational egoist if that whats you like.
Just look at how Mao or Stalin "maximized" happiness for the Chinese and Russians - hundreds of millions of people were murdered in the name of creating a "better" or "happier" society. When forced on people, Utopia invariably becomes Dystopia.
did stalin or mao make the world a happier place? NO!
was their actions utiltaristic then? NO!
okay, so you point to two people who killed a lot of poeple, yell utiltarist at them, and then generalize from a bad premise.
i see your flawless logic.