I have no illusion whatsoever that I would be the only man that would fight to the death to protect the 2nd Amendment...
That's not precisely my position. In the event of any elimination of the Second Amendment protection of those rights, my position is that the entire constitutional agreement between governed and government is then forfeit, negating the legitimacy of the executive, legislative and judicial branches of government as well; if the rights of the people go, it is not only they who suffer that loss, but so too do those who have usurped authority not granted to them by that constitutional contract.
Accordingly: if the Second, or any other amendment goes, so too does every political office and power granted by the constitution; it is thereby moot and abrogated, and no longer applies in any way.
Neither can it be restored with a simple restoration of the portion so insulted; it would then become necessary to again undergo the entire process of constitutional convention and ratification, which I doubt could be accomplished in such a fouled climate.
I also have little doubt that you and I would not find ourselves on opposing sides. So long as the constitution remains in effect, so too is my oath to protect and defend it valid; but that oath does not apply to an edited or altered constitution that does not guarantee the people their rights under that document's authority.