Did Michael Flynn violate his oath to the Constitution by calling for a coup, and is it grounds to take his retirement status away?

A video exists of him saying that a coup should happen, so it really doesn't matter how liberal or how conservative an outlet is that reports it. He said it, and that's an undeniable fact.

For everyone that is criticizing me - I only had the HuffPo article to go on when I posted - HuffPo is known to be yellow journalism - so that is what I based my opinion on. If what has been reported is true - it still is not grounds for a recall and Courts Martial. What he believes should happen is not criminal, as what a person thinks is not a crime, at least not yet. We can disagree, and even mock, ridicule and criticize him, but legally punishing him, either through the Court system or the Manual for Courts Martial for merely voicing his view, is unconstitutional. Give me proof he acted on that viewpoint, with deliberate intent to overthrow the government, then yes. As of now, he is a private citizen with a terrible opinion.

He no longer works in the government, he is no longer active duty, and his remark came as a private citizen, regardless of his military status. I would say the same damn thing if he burned the flag, stepped on it, or dragged it through the mud. The 1st amendment protects speech, no matter how distasteful, or how many feelings, it hurts. It doesn't care if you agree or disagree with what is being said. If he is recalled for this, then it would be Government suppression, and prove his point.

The Government CANNOT punish a private citizen for what they think, and when asked, voicing those thoughts.