You're overestimating the value of semiconductor industry in this hypothetical. TSMC chips aren't critical, considering that ASML can also deliver the same equ

You're overestimating the value of semiconductor industry in this hypothetical. TSMC chips aren't critical, considering that ASML can also deliver the same equipment to US... and cut off China from their equipment. (or sabotage in critical cases) There's a myriad reasons, why US would probably would send in military to protect Taiwan. But it's not going to be "just because TSMC"