TSMC is governed by the Taiwanese ruling class. If the Chinese launches a widespread attack on Taiwanese soil tomorrow, nothing would happen to any of these people. These people are not your random neighbors harboring nationalistic views.
I'm not even Taiwanese, don't know anyone of Taiwanese descent well, and I don't want Taiwan invaded.
The suggestion that there's some kind of weird oligarchy class of TSMC-controlling Taiwanese who couldn't give a toss if Taiwan was invaded is a mustache-twirling level of caricature.