Okay, I understand you're claiming some kind of knowledge or authority on the issue here, but frankly without knowing what it is your claiming, I'm not sure how I can reasonably let it inform my opinion. (To be clear, please don't disclose whatever it is as it could be detrimental to you. I don't know what you have or haven't written under the same username and I know right-wingers in the military and government can be targeted).
To be honest, the boogeyman of appeasement seems overblown to me. If Saddam takes Kuwait, he'll push further and further, taking, I don't know- Jordan and Syria. Maybe even the autonomous Kurdish region in Iraq. And if he doesn't stop there, what will he take next- France?!?
Regardless, I still don't think you're understanding my point. Countries aren't actors. As far as I can tell, US policy is not particularly closely related to what's even good for the global empire long term. Is being the guy pushing for war with China immediately beneficial to enough US political elites (including national security ones)? That's the relevant question. If China takes Taiwan and the US doesn't intervene, what's beneficial for Vietnamese or Japanese political elites- fleeing and being the government in exile, or aligning closer with China?
And for what it's worth (and I don't think this one isn't at all relevant for what US policy would be) what's in the interests of the heritage American people if China invades Taiwan? Sending fathers, sons, brothers to die for an offshored semiconductor supply chain and the interests of a global empire that hates us? Or acknowledging that it isn't our fight?