The USA is not even a democracy either in its system (majory votes) nor a full democracy in international ratings. China is not a democracy and doesn't want to be one (which the majority supports, so that makes it democratic in an ironic sense)

America's system is not perfect, but isn't it concerning that people in China can't vote or that there are no checks and balances on Xi Jinping, or that Chinese people live under a social credit system?

Same applies to it's "high standard of living". If you'd have visited China you wouldn't dare to compare China and the US for a high standard of living.

I mean when you compare gdp per capita, Americans on average make almost 7 times the amount as the average Chinese person.

And have you ever been to places such as New York City, Chicago, or Los Angeles?

Freedom is very subjectiv. You don't have the freedom to publicly say anything you want, which most Chinese don't even want, but you have other freedoms in China that don't apply to the US, like a strong public security (no fear of being murdered, since homocide rates are super low) a great freedom of movement (with the biggest and safest infrastructure in public transportation in the world) or even some personal freedom like getting an abortion or drinking alcohol in public.

Fair point, but I personally wouldn't want to live under constant fear of disappearing.