This riot will die down by itself. Just call the cops to stay at home and allow rioters to do maximum damage until they tire themselves out.
that's PRC policy.
fact is hong kong, much like stinkypore, has no hinterland.
entities/countries without hinterland can't survive in the long term.
they need to leech off some other countries.
Tiongs know this very well.
CIA/NED/MI6 can try whatever the hell they want.
Hong Kong can't be snatched away from Tiongs.
Tiongs know this too.