Trump casts digital regulation as economic battle, squeezing Korea between sovereignty and alliance

Only hours after South Korea and the United States wrapped up what looked like a smooth summit on Monday, US President Donald Trump delivered a jolt reverberating through Seoul’s policy circles.

On his social media platform, Trump threatened “substantial” tariffs and export restrictions against any country that dares to regulate American technology giants. He did not list targets, but the implication was clear: Europe first, and possibly South Korea next.

At first glance, it may seem to be another bout of Trumpian brinkmanship. But the stakes are no longer just trade balances. The axis of the global economy is tilting toward artificial intelligence and digital platforms. Whoever sets the rules for Big Tech, from content moderation to data governance, will not only command market power, but also wield political leverage. In this arena, Trump is signaling that regulation itself may be treated as a trade offense.

This is no idle warning. Europe has already enacted the Digital Markets Act and Digital Services Act, forcing companies such as Google, Apple and Meta to open their platforms, curb anticompetitive behavior and pay hefty fines if they fail to follow the rules. In April, Brussels imposed penalties on Meta and Apple. Britain has its Digital Markets, Competition and Consumers Act; Japan requires algorithm transparency. Across advanced economies, the consensus is that Big Tech’s dominance must be restrained.

South Korea is not immune from the same concerns. American platforms dominate search, app stores, social media and streaming, shaping Korean consumer habits while squeezing domestic challengers. That has spurred efforts to legislate an “online platform law,” impose network usage fees on heavy data services like YouTube and Netflix and restrict the export of high-resolution map data.

Washington, however, sees these moves not as legitimate regulation, but as “nontariff digital barriers.” Earlier this year, the US Trade Representative flagged them in its national trade barriers report. Trump has now escalated that grievance into a threat of retaliation.

The irony is that Trump casts such rules as discriminatory while ignoring that they apply equally to non-US firms. Yet the sleight of hand — branding regulation as anti-American while sparing China from mention — neatly serves his narrative of America as the world’s plundered “piggy bank.” It is digital-age protectionism, with tariffs as both bludgeon and deterrent.

South Korea faces a dilemma. On one hand, unchecked dominance by global platforms could smother local innovation and weaken consumer protection. On the other, Trump’s tariff threats could unravel hard-won trade deals, forcing Seoul into repeated renegotiations.

What complicates matters further is the lack of global alignment. While Europe tightens its regulatory grip, some voices in Silicon Valley argue that measures like the EU’s Digital Markets Act could aid US startups by loosening incumbents’ hold. Even in Washington, consensus on regulation remains elusive. Trump’s maximalist stance, therefore, could leave the US isolated just as digital standards become as strategic as semiconductor supply chains.

Seoul should draw two lessons. First, Trump’s warning was not reserved for Brussels; Korea, too, is on notice. Second, regulation of digital platforms is no longer a purely domestic affair.

Every rule on data, competition or content will be parsed in trade forums — and possibly punished with tariffs. That requires Korea to calibrate its policies to safeguard both economic sovereignty and external resilience.

Trump’s postsummit comment underscores the new reality of a digital economy, where industrial policy and trade diplomacy are converging. For South Korea, the challenge is not to pick between regulation and alliance, but to craft a strategy that sustains both. That means defending the right to regulate Big Tech while bracing for the costs of doing so.


khnews@heraldcorp.com