The idea that state militias would be compelled to use outdated technology doesn’t make sense.
The fact that state militias were thrown over for a standing army before the ink was dry on the Constitution makes a whole lot of things about the Second Amendment not make sense.
dangerous and unusual weapons
You cannot say that there is any greater chance more than these two people would now be dead if the perpetrator had used a suitcase nuke instead of a gun. You can’t.