What about it? TSMC now has fabs on U.S. soil. Intel and Samsung also have fabs and are working on processes that compete with TSMC's, even if their yields may be somewhat lower.

Washington will have to decide whether the U.S. is willing to pay slightly more and rely on domestic Intel, Samsung, and TSMC fabs, or risk a military defeat and potentially millions of American lives if the situation escalates to intercontinental ballistic missiles.

The choice is obvious. Real life is not a Hollywood action movie. Also, anyone who thinks South Korea or other Asian allies would automatically go to war with China is delusional. So U.S. would be left alone. U.S. has never faced an opponent like China so a country that is also the world's leading manufacturing power. Nazi Germany was nowhere near as economically and industrially formidable as China is today, and the U.S. fought it alongside most of Europe and the Soviet Union.

If anything happens, Taiwan will probably give up. They are mostly posturing, and China may not even need to invade. they could simply impose a blockade.

Bombing things may seem normal to the U.S., but as Sun Tzu argued, the best victories are achieved without fighting, once swords are clashing, that's a strategic failure.