The problem with “America First” is that it describes an attitude, not a purpose. It substitutes selfishness for realism. It implies that nations can go it alone, that we stand for nothing beyond our immediate self-interest, and that we should give little thought to how the rest of humanity thinks or lives. It suggests that if we are strong enough, we can prosper no matter how much chaos, disorder or injustice surrounds us. America First leads to the diplomacy of narcissism. And narcissism is as unhealthy for nations as it is for people.