On Thursday, as TikTok C.E.O. Shou Chew gamely withstood a drubbing from Republican and Democratic lawmakers alike—with communications support from SKDK; reviews were mixed—a consensus emerged among some observers that the pressure on the Chinese-owned company was a boon to Meta, Google, Snap and other U.S. social media firms that saw their stock tick upward over the course of the hearing. The all-too-obvious reasoning here is that, in the event of a ban on TikTok, or a forced sale, or some other force majeure-ish event, its some 150 million U.S. users will return to, or spend more time on, apps like Instagram and Snapchat that have lost market share—and, frankly, Gen-Z cachet—to ByteDance’s juggernaut.