Earlier quoted context omitted.
As a first pass, wouldn't this be good for China? TSMC was strategic for Taiwan, as a military takeover of Taiwan (where the plants will likely be damaged or scuttled) would be economically damaging for the US. That might be a bit different if the US has enough high-the fabs internally. I'd love to hear better analysis; I'm not confident of my understanding here.
Politically it would be ideal to keep everything in Taiwan as this greatly increases the stakes for a potential war. However there is a pressing shortage of electricity in Taiwan. Just yesterday there had been a major blackout as one of the coal fired power stations suddenly went off the grid. I'm sure TSMC has been given priority supply but they are cutting it extremely close. Taiwan is just not a good place to have…
https://asia.nikkei.com/Business/Tech/Semiconductors/TSMC-ta...