I know a couple of ex-military fellows from Taiwan. They seemed more than willing to fight to the death for their country. All their wargames involved a Chinese invasion.
Yeah, yeah, yeah, and I watched The Sound of Music so I know all about what happened in Austria in 1938.
Obviously, there are SOME people living on Taiwan who would object to, or even resist, reunification. That's not the point.
The point is, what evidence of willingness and ability of the whole people of Taiwan to fight a bloody, ultimately failing, war with China would justify mussing one hair on the head of a single American sailor or marine?