What matters is CCP wants it. The disputed land status will be used as a pretense. The US won't dare to start a war and will write off the loss. Other countries won't even dare to comment on the situation.
This kind of thinking gave us the First World War.
If the US stops protecting Taiwan and allows China to take it by force, it can kiss their credibility worldwide goodbye, dismantling its entire network of allies built over decades in one fell swoop.
Not impossible, but world empires do not generally do such things unless they are very, very weakened.
Isnt Taiwan too valuable right now for the US specially TSMC. US will need to step in to protect Taiwan to protect US interests.
Look at where we are now :|
The point is that a war won by the US will destroy the winner too. Did you just downvote and comment without even reading the post or what?