Arch, while a lot of what you have written, is similar to my thoughts, the main point is missed though.
In the US, regarding this topic, the only thing which may land you in jail is an act which can be proven as definitive action towards committing terrorism. And even that is often overlooked. Freedom allows people to disrespect whatever they wish. It is OK to burn the flag, OK to resist detainment, OK to post any BS anywhere.
Anyone who has lived and worked in other first world countries will notice the difference in culture.
Let’s just cite one example, link below.
Two Chinese tourists discovered the hard way that giving the outlawed Hitlergruss — or Nazi salute — in front of the Reichstag building in Berlin is no laughing matter in Germany.
www.google.com