Until we're far enough removed from the situation, everything is comfortable again, and the MBAs start saying "you know, if we just offshored fabrication..."
However, in this case, South Korea is also a close US ally. There is little risk to the US that the headquarters of Samsung is in South Korea.
So is Taiwan.
As insinuated in the pessimitic tone of in the interview, TSMC also appears to be very reluctant to expand beyond Taiwan and China, and is certainly less worried about geopolitical threat from China. I think it's important to note that not everyone in Taiwan is dead set against the CCP. In a pre-pandemic Pew Research Center poll[1], at least 1/3 of Taiwanese still longed for closer economic and political ties with the mainland China. I don't have any recent data, but I doubt it changed much since.
[1] https://www.pewresearch.org/global/2020/05/12/in-taiwan-view...
With any luck, COVID (and tariffs) has transformed business for the future.