The Globe and Mail reports in its Wednesday edition that under the Biden administration, the Federal Trade Commission has discarded decades of antitrust law and instead cooked up a stew of simmering grievances against successful companies. Guest columnist Todd Buchholz writes that for 50 years, antitrust authorities placed consumer welfare above all else. Lower prices were deemed a good thing. Today, the FTC focuses on soft -- and more inscrutable -- variables such as fairness and worker welfare. Consider the FTC's grudge against Amazon, which Americans use because it offers great deals and fast delivery. FTC chair Lina Khan argues that Amazon's soaring price-earnings ratio proves that it must be unfairly stomping on someone, somewhere. In other words, founder Jeff Bezos is not rich because he created an amazing system, but because he has effectively swiped money from competitors, partners or customers -- or all three. Ms. Khan has dragged numerous companies to court to prevent sensible mergers based on unsound legal theories. Thankfully, in most cases, judges have recognized the FTC's overreach. From the FTC's point of view, any successful company is Gulliver, and the authorities have an endless supply of string.