When you believe that the brokenness of this world can be not just ameliorated but fixed, once and for all, then people who don’t share your optimism, or who do share it but invest it in a different system, are adversaries of Utopia. (An “adversary” is literally one who has turned against you, one who blocks your path.) Whole classes of people can by this logic become expendable—indeed, it can become the optimist’s perceived duty to eliminate the adversaries. As
