> ... you seem to believe the US is one "thing" or a single country. It isn't and yet it is. It is a federation of states with a few odd bits tacked on ... which means that there are federal laws, state laws, county laws, city laws, bye laws and made up by someone laws.

Free speech laws in the US are strictly governed at the federal level, not at the city / state / county level. Your comment accordingly makes no sense. The states are legally unable to make any laws abridging freedom of speech. Every time a local entity has attempted such, it has ultimately been struck down by the federal government, which retains supremacy over many rights (and will ensure those rights with force against a local entity if necessary, as when ending segregation).