It's not very believable to be adamant about mainland China and Taiwan being the same country that you will rule after conquering the mainland when you have a significant military advantage in tech and allies, then when the mainland gains the upper hand militarily you start insisting that actually you're not both part of China, the civil war is ancient history and wasn't really a civil war anyway, and anyone who appears to be willing to breach the status quo with violence is horrible. It comes across as disingenuous, like if Taiwan was militarily significantly stronger than the PRC today then it wouldn't be "Taiwan independence" being advocated, it would be "eliminating the communists to unify China" being advocated.