Why hasn’t the DPP after all these years cleaned up the army of pro-reunification people?
Just to be clear this is a technical mess up by the ROC Air Force but is not anything political. I would say the hierarchy and institutions of the ROC armed forces are very "One China" but not pro-unification. In a PLA assault on ROC without Taiwan Independence being declared I expect the ROC armed forces to resist every step of the way. If the DPP pushes through proclaiming Taiwain Independence (giving up territorial claims on Mainland China) which in turn provoke a PLA attack I do expect a good part of the ROC armed forces hierarchy to mostly stand down. That being the case and USA opposition means a de jure Taiwan Independence is extremely unlikely.
Your pedantry is top notch
Why haven’t they purged the KMT elements who will defect once the PLA reaches the shore?