Eeh. These kinds of global opinion polls are rarely worth anything, but I can see it being largely true. China has been making a real push to expand their soft power and it's been pretty effective - see opinions on lemmy about china's genocides for an example. It's boosted opinions about them quite a bit at a time when the US is taking it's rep for a relaxing drive off a cliff. The US rep will almost undoubtedly recover if/when we oust trump though - he just makes it so damn easy to hate him specifically, and his obsessive drive to make everything about himself has largely (and sometimes correctly) shifted the social burden of the fault for US crimes from the country as a whole to him and his cronies specifically.