Sorry to take the discussion away from the stream to politics in the semiconductor industry, but it was brought up in the thread and I'm obsessed with this topic and think anyone who is interested in AI should be paying attention to this.
TSMC already has multiple fabs outside Taiwan and yes even in mainland China, has for years now. Operating these factories requires high quality competent people who treat their job like a religion and are basically willing to work for free. It's quite difficult to find this kind of person outside of Taiwan because in Taiwan working at TSMC is the greatest honor, not so much in other countries. That's basically why they aren't as successful outside of Taiwan. I have no doubt They will get up to speed in America, but not on the timeline originally proposed.
Someone has to build the inevitable "AI" weaponized control system and no one who matters gives a shit who does it, only who can and TSMC is best positioned and most able to do that, so for that reason they will be allowed to exist along with all systems that support them.