The U.S. Commerce Secretary has sent an ultimatum to the Republic of Korea. The threat is, "If you do not sign the agreement, you will pay a 25% tariff." U.S. Commerce Secretary Howard Rutnik even stated firmly, "There is no flexibility," and "This is a clear-cut, black-and-white issue." The U.S. government, which constantly speaks of its strong alliance for peace and freedom on the Korean Peninsula, is treating South Korea not as an 'equal partner' but with the arrogance of a country dealing with a 'vassal state'. This starkly reveals that 'America First' is, in fact, 'America Only'.

This rudeness from the U.S. goes beyond diplomatic and trade pressure. Their demand is that Korea not only makes massive investments but also follows the U.S.'s wishes on how to select investment locations and share profits. As justification for this 'bullying', Secretary Rutnik cited an agreement with Japan. He is demanding the same of Korea, citing as a model example Japan's agreement to give 90% of its investment profits to the U.S. and cede decision-making authority over investment locations. This goes beyond the bounds of economic logic or fair negotiation; it is clear economic blackmail and an attempt to violate sovereignty. It is no different from a suzerain demanding tribute from a vassal state.

The actions of the Trump administration are a manifestation of an imperialistic mindset that views allies not as partners but as 'subjects to be dominated'. Regarding President Lee Jae-myung's perfectly commonsensical statement—"Why would we sign an agreement that is not beneficial, even if it's something we should sign?"—they are threatening that 'there is no choice'. To force an unfair and unilateral agreement that goes against national interest is the most dangerous action, as it undermines the value of an alliance and erodes trust.

The cautious stance of the Korean government is perfectly natural. There is no reason to comply with the U.S.'s unilateral demands at the risk of a massive foreign currency outflow. An alliance should be based on mutual respect and benefit, not the forced sacrifice of one party. If the U.S. truly considers Korea an ally, it should at least show some respect and rationality. Otherwise, this rude ultimatum will be a self-destructive fuse that will cause a rift in the ROK-U.S. alliance.