Don't want to get ahead of myself but Japan is one of the three/four major strategic pieces of US Pacific control, so it's good to see cracks forming.
And of those, it's such a huge piece that if the US could no longer control it (Japan), then the entire US strategy is basically undone and holding other places is kind of pointless.
Most people in Taiwan want the status quo continuation, which does not require American involvement. That status quo is also beneficial to both Taiwan and China, so there is no need for China to do anything like invade.
You believe in a fantasy where you think China is acting in a manner without consideration for American aggression. In other words you don't know what you're talking about.