Looks like this is covered in the First amendment
https://en.wikipedia.org/wiki/First_Amendment_to_the_United_States_Constitution
in so far that this does not appear to be a denial of free speech
"Although the First Amendment applies only to state actors,[1] there is a common misconception that it prohibits anyone from limiting free speech, including private, non-governmental entities.[2] Moreover, the Supreme Court has determined that protection of speech is not absolute.[3]"
How protected are foreign visitors to the US and esp Florida and other states enacting similar laws, ?