It is clear that reunification with China is the better option for Taiwan; while
it does not suit Western interests nor does it truly fit in with the status quo in Taiwan, it is a small price to pay not to have a growing giant looming over its head in the future. There is no question that China would not back down from its insatiable desire for Taiwan, nor could it if it wanted to. It would be a significant hamper to Taiwan to see China's military rapidly growing across the border and posing a constant threat. To alleviate that threat and go with an agreement that allows the preservation of most of what it's worked for utterly usurps the prospect of becoming the next big warzone and undergoing an indeterminate period of time at war. The West has a great amount of interests in the region, but those interests are not as great as China's continued interests are and will be; nor is the West as free or determined to act as China is. Unfortunately for Taiwan, it seems likely that it will maintain the uncertainty that's been the norm in their relations with China and the US for the last thirty plus years. There's no reason to think that the Taiwanese will suddenly wish to merge with the Chinese unless there is something drastic done, at which point it will be rather too late to do it on their own terms.