Supporters say the bill would curb platform power, but critics argue it would replace consumer choice with design mandates, compliance obligations and regulatory approval over integrated digital services.
The EU experience is cited as the main warning: DMA enforcement has already spawned investigations, gatekeeper duties and compliance disputes, while outside analyses flag weaker personalization, higher transaction costs and potential revenue losses for businesses using platforms.
That structure could entrench the very incumbents it targets, critics say, because large companies can absorb legal and compliance costs more easily than startups and smaller rivals.
The broader stakes extend beyond antitrust policy, with opponents arguing a U.S. copy of Europe’s rules would undercut Washington’s efforts to resist DMA-style regulation abroad and could slow domestic tech innovation.