Alarmism over population growth was central to the ideas of the Club of Rome. It received momentum through Paul Ehrlichâs even more egregious and incorrect book, âThe Population Bomb.â The fact that every single prediction Ehrlich and John Holdren, advisor to President Obama for Science and Technology made, have proved completely wrong doesnât stop extremists seeing the need for total control. Some believe people should not exist. Holdren thinks they should be limited and controlled as detailed in a list of his totalitarian proposals.