Here you go, the reason why China will not invade Taiwan. If you you want America to get involved, you only have to target their economy. TSMC knows it and it is using their influence as geopolitical leverage.
"However, he is not alone in saying that the island is crucial for making chips — AI or otherwise. AMD's Lisa Su said, "We do a lot of our manufacturing here with key suppliers like TSMC… And then we also have a number of partners that help us build out the ecosystem here in Taiwan." (via Reuters) Nvidia's Jensen Huang was also quoted saying that Taiwan is one of the most important countries in the world during his night market dinner with the heads of TSMC, MediaTek, and Quanta."