I addressed that the US National Guard is part of the US Military. I don't doubt that an armed civilian population can defeat the US Military, but most 2A advocates support the physical mechanisms of tyranny: militarized police, violation of privacy, unlawful detainment. They wait for a civil war that never comes, while supporting the growth of the police state. Is the annual number of gun casualties worth an absolutist 2A position when guns don't actually make us any freer?