They can do that on their own time not at a place of work. Furthermore with their popularity all they have to do is organize press conferences for whatever causes they want to relay to the public. It has nothing to do whether I acknowledge their causes. I may agree with some of them. The problem is that they are disrespecting the flag that so many soldiers have died to protect. If they would hold these press conferences or rallies there would be more people joining their causes. The whole thing is a farce.