Fuck that!
We have this thing called the First Amendment. It applies to all people under the jurisdiction of the United States. There’s no exception for “guests.” Criticizing the government is a time-honored American tradition. Throwing people out for it is absolutely vile.
Rayiner says it in a comment upthread. Whereas most lawyers in the US work on cases filed in state court, Rayiner works on cases filed in Federal court, and if you were to sue the US government to try to assert the free-speech rights of the immigrants we are talking about, you'd do it in Federal court.
Sadly, his comment has been flagged.
>the First Amendment . . . applies to all people under the jurisdiction of the United States.
Not according to the Supreme Court it doesn't.