It's not just the US: Japan has freedom of speech too, encoded into its constitution. Arguably, speech is more free here than in the US. Many other things are much more free too, such as being able to drink beer outside, or being able to build what you want on your own land without NIMBYs shutting you down. The only big "freedom" we don't have is being able to carry guns around, but I don't miss that at all.