Actually the Sunnis pose a closer danger. It is better to support the Shiites to kill the Sunnis
Cannot kill off Sunnis — their birth rate is astronomical. Ironically, the only way to tame Muslims is to inject liberalism, which includes modernism, homosexualism, feminism, pacifism, celebrity culture, technology worship, and relativism. In no time, Islam will be as pussified as any previously-violent religion.