If you are having to use force, the legality isn't an issue anymore. I don't mean that as "you are past worrying about the legality." I mean that as saying you have transcended the law, or descended below it, as the case may be. In a way it is saying that the legality isn't an issue anymore because the tyrants havetied your hands so thoroughly with lawthat there is no legal way to resist, change, or get out from under it.
Its rigged that way on purpose. The Founders gave us the 2Aas a way to fight tyranny,yet the Constitution allows the government to put down insurrections.
One effect of this is that the bar was set high for an insurrection. Its the American version of the old adage, "He who would slay the king must not fail in the attempt." (Because the king is gonna come after you and get you, if you fail to get him.)
So, if rebellion or revolution occur, the rebels must not fail. The winner gets to interpret or write the law and apply it to the loser.