People in China, at least those millions people who are able to cross the Great Firewall, know that democracy is generally good, but they also know that a strong central government can also be useful for certain circumstances. Most westerners and HongKongers on Hacker news have a very extreme political view, you just believe "democracy is good"(TM), protesting against the evil Chinese government is good. But can you take a closer look at what is really happening in HK and then decide what you believe?
BTW, I'm neither pro-protester nor pro-police, I think the protest is a result of economic regression in HK. You could also check my comment and posting history to see that I'm not a 五毛党.
Whataboutism is lazy though, and I do find it telling that the go-to argument a lot of pro-China commenters across platforms use is exactly that...
Also, I'm not aware of multiple definitions for the US government.
While private government isn't US government, they are very much interlaced, pair-evolving and authoritarian being governments.