During a recent forum discussion on China-US strategic competition at the Milken Institute, US congressman Seth Moulton said, "China needs to know that if you invade Taiwan, we will blow up TSMC".

This was not the first time a US politician has uttered such words. Similar views have been expressed more than once in the past year or more.

On social networking sites, the local media on the island often ridicule some Taiwan politicians, mostly from the ruling Democratic Progressive Party, for looking up to the United States as their "daddy" and being willing to sacrifice anything to resist the reunification of the motherland. However, the words uttered by US politicians show that their "daddy" does not really reciprocate the love of its followers on the island, treating them instead as dispensable tools.

However hard these island-based separatists try to please their "daddy", the latter won't consider their interests in its greater strategy. For the US, the island is just a pawn in its geopolitical game of containing China and preventing the country's national reunification. It will not hesitate should the time come to sacrifice the pawn in exchange for certain real benefits.

So, by threatening to blow up TSMC should China be forced to take military action for national reunification, the US means to deny China a first-class chip-making plant even after national reunification. Neither do they care much about the world. Told that blowing up the plant would mean a $2 trillion loss for the world economy, Moulton seemed not to care one bit.

However, their plan won't succeed. China will realize its national reunification through peaceful means or, if necessary, by force, one day because that is an unstoppable historical trend.