As a foreigner to both the US and China, I think that the US system is not really better than the Chinese governmental system.
As an example, in North Carolina, a state I used to visit quite often, the Democratic Party got a substantially more votes in 2018 than the Republicans. Yet, the Republicans dominate the State legislature with many more seats. Gerrymandering and all that.
That's the opposite of how democracy is supposed to work.
So, the US and Chinese systems are not too different.
At least the Chinese are honest. That can't be said about the American system.