Your frame of reference will shape you views
perhaps the Chinese are not rushing in as quickly as the yanks because they are acutely aware of the fact that such problems are internal problems and unless help is requested one should not merely assume that one is able to solve everyone's else problem
i.e. don't meddle in my affairs and I won't meddle in yours rather than don't meddle in my affairs but I'm free to meddle in yours in the name of righteousness, but I presume being a yank you won't understand this pov
in other words, there might also be a cultural bias here towards action or inaction when it comes to the sovereignty of another country