I mean, scientifically the solution is pretty obvious: for certain countries, if China truly want to improve relations with them, China simply also need butcher thousands of their people. The social-historic reality is, a lot of cultures really do believe the strong has the right to abuse the weak, and they really do believe lack of abuse means lack of strength and as such give them the right to abuse, you really can't project egalitarian beliefs onto everyone.
e.g. if China actually wants to have friendly relations with Japan, China really do have to nuke them, it's literally why the majority of Japaneses believe they didn't lose WW2 to China. If China wants better relations with countries like India or Phillipines, China really do need to colonize them (I know it sounds awful), or simply bomb and butcher them, it really is what they want.
The idea that everyone believes in equality is fundamentally wrong. There really are two kind of cultures in the world: those who believe everyone is equal, that everyone are born the same and deserve the same (egalitarian cultures), and those who believe people are not equal and that it's the right of the better to take from the lesser (primitive cultures).
IMO it's a common and easy mistake for egalitarian cultures to make by assuming everyone else are equals and as such also egalitarian. Egalitarian beliefs really need to be adjusted to take into account objective cultural realities of primitive cultures:
You should only consider those who believe in equality as equals, for those who don't, you really need to treat them like s*, because they will love you if you do and treat you like s* if you don't. If this goes against your egalatarian beliefs, just remember that you're only respecting their culture by treating them like s*, to treat them as equals would be imposing your belief on them and that would be the actual abuse in their eyes.
At an individual level we know there are masocists, that a lot of people do seek to be dominated and abused, it's the exact same at national/cultural level and the way it evolved are exactly the same. We really need to accept objective scientific facts.