It has to be remembered that USA hasnt fought a peer power since ww2 and China hasnt since 1963.
Neither is going to risk nuclear war and total annihilation for taiwan.
China benefits by doing nothing in the thucydydes trap doctrine- the longer it waits, the narrower the gap between itself and usa.
USA is extremely risk averse and its social dynamics is such that barring an actual invasion of continental USA, USA isnt going to risk hundreds of thousands of bodybags returning home. It is therefore, trying to deal with China like it dealt with USSR: contain it and choke it of resources and economy till it collapses under its own weight. With China that is extremely hard and as such, USA has no clear plan towards it.
With China, the pathway is clear- end dollar hegemony, which ends US hegemony. As such, USA will risk war only when its dollar hegemony is near collapse.
Have you checked the amount of sovereign gold the US owns? Even without the dollar hegemony, they'd do well if the world returns to the gold standard & manage their debts at the same time though having said that the transition isn't going to be a smooth one.
As far as choking China goes, to use an analogy from metallurgy, the Chinese state is extremely hard yet fragile. The Han have traded personal freedoms for economic prosperity like for instance in Singapore though the regime in the latter state is no CCP in this respect.
Sustained sanctions resulting in an economic downturn coupled with mindless expansion by the Chinese which for instance has already resulted in a crippled real estate sector & consequent fall out will deeply unsettle the Chinese populace.
If there's one thing the Chinese state fears much more than external aggression , it's an insurrection by its own people of which there are plenty of examples in Chinese history , all of which the CCP avid readers of their own history are aware of.
In view of the above I put it to you, that the CCP will come out all guns blazing when that happens to shore up support for its regime by playing the nationalist card.
This is likely to follow the same trajectory that US Japan relations followed in the 1930s before open hostilities broke out.
To add to the above, your thinking is like that of an oriental. We've experienced colonization & it's after effects. The Anglo Saxons or the Europeans don't think like you do. Pragmatism may be a virtue to you hence you'd be amenable to sharing power. To the Anglo Saxon it's a huge come down. The US will confront China for the same reasons the UK confronted Germany.