It's the same with whities around the world who take pride that one of their own, the US, is (currently) at the top of the pyramid and gush with pride that the US, a whitey country, is "leader of the free world" .
I always thought pride was felt when one achieved something eg when a team you coached won a prize. Pride by mere affiliation is misplaced. eg this "proud to be black" shit. Nobody achieves blackness it depends entirely upon the colour of the procreators.
Unless you are part of the Chinese government their success has nothing to do with you.