The USA has lobbying, which is seen by the rest of the OECD countries as a legalized form of bribery. This allows regulated industries to corrupt and otherwise influence the regulation of their own industry. The USA might very well have similar restrictions to China on say prize boxes in video games if not for the outsized effect of industries on legislators.
The US also has a history of actual disenfranchisement and state legislators gerrymandering away the influence of a large minority of votes for Congress.
The effect is that the US actually has a complicated system of perverting the democratic system, whereas the Chinese system doesn’t even try to appear democratic, thereby appearing at least more honest about what it is.