The governments are both pretty terrible, but China has been far more violent to it's own citizens in recent times than the US has. The recent non-citizen hunts and unwise involvement in foreign affairs notwithstanding, the US doesn't (currently) have a policy of ethnic cleansing and violating human rights on a massive scale on its own lands.
It's not china mass survelling the planet, the US is. It's not china starting wars, kidnapping foreign leaders, it's the US.
It's not china threatening their allies, not even going short of mentioning annexations, the US is.