> I think their way out of their structural societal problems would be to emphasize the class issue and on decolonializing their governmental and economic framework as soon as possible (which I think part of the protest movement gets, and which isn't against Beijing's interests)...

A bit stronger than just "isn't against Beijing's interests" - this lets them cast it as a win for Beijing against colonial oppressors. Beijing gets a propaganda win, and doesn't lose a face-off against the protesters.