“Predation isn't merely a pricing and wage practice; it is also a political practice: one of its most powerful tools is local or state subsidies. In 2018, when Amazon was offered $3 billion in state subsidies to locate a new facility in New York City, the owner of the Strand, the legendary Union Square bookstore, wasn't having it. She told the New York Times, 'The richest man in America, who is a direct competitor, has just been handed $3 billion in subsidies.' The basic insight in her complaint is essential: any subsidy that goes to a particular firm necessarily hurts its competitors.”