Chinese propaganda seems to hit very hard these days. If you really don't know, you seriously need to check what media you are consuming. Yes, the US has huge problems, many old and some new, but on a serious technical level the answer is (at least for now) 100% clear.
> Chinese propaganda seems to hit very hard these days.
Assuming that everyone who disagrees with you is a propagandized bot is a terrible way to live. You will not learn.
Assuming that China is not officially a 100% authoritarian dictatorship takes some serious mental gymnastics or hardcore brainwashing by propaganda channels. In fact forget media manipulation. A simple look at what they did to their constitution would already tell you everything you need to know. The US might be moving in this same direction under Trump, but it sure as hell isn't there yet. And if they do try to do the same, there is a good chance for another civil war. So while China is already lost, there is still some level of hope for the US.