I think this is where MLK’s “injustice anywhere is injustice everywhere” comes into play. There is no better or worse. There is only right and wrong. And there is plenty of wrong in plenty of places. Lots of right too, but right in any quantity does not negate the wrong.
Or to put it another way, I think that representative democracy is the least worst form of government, and plenty of Chinese may think that the CCP’s autocracy is better. The fact that both forms of government have been responsible for human rights abuses (to use a rhetorical big tent the size of Greenland) neither is justified by their system of government nor does it render either system as fundamentally wrong. A lot of Chinese who would have otherwise etched out a life of hopeless extreme poverty have all the reason in the world to side with the CCP.