In 20 years when tsmc has effectively transferred to america, taiwan will stop being contested and go the way of other chinese islands like hk. This is the logical solution to the us-china cold war.
> Taiwan is China's previous regime military holdout.
China is patient, but in "Civilisation-game" terms I believe that the strategic, political and economic importance of Taiwan are much to high for the CCP leadership to passively ignore long enough for a "cultural victory".
I also agree with your prediction. If Taiwan's "Chinese cultural heritage" does end up in US, the only other matter that are Taiwan sensitive are controlling the first island chain, and Japan's thoughts on the matter.