> What motivation will Americans have to fight and die for Taiwan?

Well if the Yanks are smart, the second it becomes a US state you strongly encourage two way migration so there are a bunch of square-jawed, grass-fed, All American kids living there that the US press can get exited about. Jack, Diane, and Tyrone getting shot at by the PLA is going to be a Big Fucking Deal.

Heck, if I was Taiwan I’d stop spending money on defence and just start spending money giving free university tuition to Americans.