HK needs to declare independence if they want to preserve their lifestyle.
That would be nice but their government is controlled by lackeys for Beijing; they lack an independent military; and even if they had one, HK is completely militarily indefensible from China.
Taiwan is in much better shape in all of those areas, but still I fear for them. IMHO, they need to be sent far more weapons by the US and they need to pretty much organize their entire military-age population into a well-trained reserve army a-la Israel.