Ok, so let me get this straight- You believe that wanting to be happy is selfish, and that humans only live to reproduce? By that logic, there is no point in life. You're basically saying that the entire purpose of a human is to be born, reproduce, and die. We aren't some kind of rodent. We don't live purely to multiply and grow our species. Also, most major parts of the world are currently very overpopulated, the human race isn't dying out anytime soon.