Just because it’s not a known national ban on websites doesn’t make the US any different. Over Half the libraries in the US are blocking websites that may have nudity or violence. There is no more free open access to the Internet for the majority of Americans. The service provider chooses what is allowed to be witnessed, and many different service providers agree on blocking the same things across the country.
China may appear to be different in that they take a nationalistic approach to blocking their websites. At least they are open about their government blocking blocking websites. The US is trying to be more sneaky in blocking website so as not to appear to be like China. This is just as bad if not worse.