Indeed. People have rights. Like the right to avoid anything related to the NFL.
Below is what the NFL levied in fines for non-game related/non-off field related penalties.
Apparently, based on the hundreds of thousands of dollars they took away from these players, "rights" is a relative term.
"Public Statements: The NFLPA and the NFL Management Council agree that each will use reasonable efforts to curtail public comments by Club personnel or players which express criticism of any club, its coach, or its operation and policy, or which tend to cast discredit upon a Club, a player or any other person involved in the operation of a Club, the NFL, the Management Council or the NFLPA."
The NFL has lost tens of millions over 2015 since their ratings are down 11% year over year. Hopefully, they'll lose hundreds of millions more.
2016: $35,137,408 in ALL fines.
(Verbal or other non-physical offenses against officials are, apparently, bad. Verbal or other non-physical offenses against millions of Americans because punks aren't man enough to stand for their country is, apparently, OK.)