Had Chiang Kai-shek and the Kuomintang not insisted on fooling themselves once they established themselves on Taiwan/Formosa, and had they chosen instead to declare themselves an independent nation, and had not the US been involved in a serious case of enabling behavior for Chiang for a couple of decades, Taiwan would already be an independent nation long since.
But that's not how it worked out. Counterfactuals: fun to play with, but in the end lacking substance.