My conspiracy theory is that something else is brewing on the international level that is bigger than these riots. There's been reports of actions by various international adversary militaries. Everyone is extremely busy.
It doesn't relate to the riots at all. My point is these things reasonably distract leadership from the riots if we're on the razor's edge away from global nuclear war.
Hong Kong has largely served its purpose as a liaison to the West. So it isn't surprising that China wants to reunify with them as well.
https://www.nbcnews.com/news/world/russian-documents-reveal-...