So with regards to your coming out paragraph, who gets to decide what Taiwan is/becomes? China or the Taiwanese people?
I mean i dont see where the KMT, in its current state ( modern ) argue for reunification ( or against ). They are playing both sides. Thats politics.
Every publication ive seen on this matter clearly states the Taiwanese want to become own country/democracy. KMT arent arguing against that either.
Taiwan per capita income is almost 3x that of China. ( $33,000 vs 12,000 ) - they do not wish to have that diluted by incoming Chinese labor. They look to maintain economic independence and wealth which leads to national security interests.
US as always championed burgeoning democracy. Does that make us the "world police"? Hardly. It does make us the defenders of democracy across the globe.