The notion of "Freedom of Speech" is only a contract between the government and the individual. You say that speaking your mind can get you fired, but that is between the employer and the individual, not the government. If your employer doesn't like what you say, why shouldn't they be able to fire you, the Constitution doesn't give you a right to a job.
It applies even if you work for the government, are part of the government, appointed, elected or otherwise; civilian, military, etc.
If your employer doesn't like what you say, why shouldn't they be able to fire you, the Constitution doesn't give you a right to a job.
Yes, all the repercussion I mentioned, except "can get you dead", are legal. The "can get you dead" part is not legal, but it is real. It all proves my point, IMO.