>The American system pushes forward individual freedom, humanism, liberalism, capitalism
I agree with you, but a lot of people seem to think these values are automatically parts of America - a "system" as you described it - instead of things we all have to actively achieve every single day. It's a "use it or lose it" kind of thing in my opinion. We have some of the worst voting rates in the developed world. We have illiberal values and behavior creeping into both sides of the political spectrum. On the left we have the language police, cancel culture, and a general attitude that no part of American life can take place outside of the government's sphere of influence. On the right we have blatant xenophobia, voter suppression, and a refusal to deal honestly with our country's legacy of racial oppression.
Those values you listed are not magic totems that we can summon to fend off the specter of Chinese totalitarianism without any real work on our part. If we don't actively pursue them, defend them, and set examples for our children, they will die off.