The first exception [to the First Amendment] will not be the last.
Civil liberties victories never stay won, but must be fought for over and over again.
The notion of religious liberty is that you cannot be forced to participate in a religious ceremony that's not of your choosing simply because you're out-voted.
You will be pleased to know I stand obediently for the national anthem, though of course I would defend your right to remain seated should you so decide.