Japan and Korea have no minority problems, those tiny single nation states are nothing like China, China is against any separatist movement under the disguise of religion, be they Dalai Lama , radical Islam or Falungong, yes. If you call that persecution, be my guest, we're not gonna change it, it helps China being peaceful and stable achieving the fastest growth for several decades.
As for your indeginous poplation, almost killing them off and apologizing to an handful of lucky survivors is a good strategy? They, as a nation, were finished already thanks to your consistent racial genocides, I don't think China would try this strategy.
