Are you claiming that the USA has been 'keeping peace'? The one country in the world that has been involved in each and every war that has happened in the last 70 years, often on the side of (or being) the aggressor? China,for all of the atrocities they carry out inside their country, has at least not started any wars.
Huge powers are never your friends - that much is certain. Whatever they do is ultimately meant to further the goals of their own citizens (the wealthy and powerful, of course) - this is true of China, the USA, the USSR, and every other empire in history. Some small countries benefit from an empire's influence, when they happen to be in a place where that empire wants stability (for example, Romania has mostly benefitted from US colonization). Other small countries are devastated and thrown into dictatorship (Nicaragua, Cuba, Iran, Honduras, Guatemala, Vietnam, Yemen, Iraq, Afghanistan, Palestine, Syria, to name a few).
Yes, keeping the peace sometimes requires minor conflicts to prevent larger ones, and some regions are unstable at best. Meanwhile China has a population of 1.5B+ on its own and atrocities "inside" are still atrocities large enough to dwarf prior world wars. Same with the existence and suffering of nations like North Korea under their protection.
Your selective dismissal of conflict is telling. If you're afraid of, and dislike, the USA then that's unfortunate, but it doesn't leave much more to discuss.
Huge powers are never your friends - that much is certain. Whatever they do is ultimately meant to further the goals of their own citizens (the wealthy and powerful, of course) - this is true of China, the USA, the USSR, and every other empire in history. Some small countries benefit from an empire's influence, when they happen to be in a place where that empire wants stability (for example, Romania has mostly benefitted from US colonization). Other small countries are devastated and thrown into dictatorship (Nicaragua, Cuba, Iran, Honduras, Guatemala, Vietnam, Yemen, Iraq, Afghanistan, Palestine, Syria, to name a few).