The restrictions aren't symmetric at all.

Chinese models have government-enforced censorship, while American models have security and legal restrictions.

I don't care why they're being censored. I care that they're being censored.

You can also make a pretty good case that exactly what you just said, rather than being a demonstration of how free and open the American system is, is a demonstration of how advanced the American system is, wrapping its controls around you with no target to blame or lobby for changes. Is China "more" authoritarian than the American/Western system... or is the American/Western system actually just that much better than China at it?

> security and legal restrictions

The security of American hedgemony, and legal restrictions that are due to laws enacted by the American government

You're using different words to describe the same thing, but trying to imply America's reasons are moral

Their deplorable censorship, our necessary legal restrictions. Potayto, potahto.

Legal restrictions are literally government enforced censorship.