Mutual hatred is a powerful unifying force, it is not beyond dictators to use this as a tool to enhance their power. You shouldn’t take autocrats at face value, their public interaction is much more staged for effect than people seem to believe. In that way, genocide is just another political trick.

My dictionary defines political as "relating to the government or the public affairs of a country". Given that genocide is the policy of the Chinese government, it's a political matter.