I mostly agree with you (and upvoted your comment), but I think modern KMT doesn't really believe that either, they just say they "believe it" to maintain healt

I mostly agree with you (and upvoted your comment), but I think modern KMT doesn't really believe that either, they just say they "believe it" to maintain healthy cross-strait relations. KMT values economy over opposing "one China". I would say DPP values eventual independence more, but they still recognize the economic ramifications and thus seek to develop economic relations with other countries to reduce reliance on China (but how successful this has been is debated). Anyway even DPP says they support "one China" to some degree, they're just more willing than KMT to risk supporting it to a lesser degree.