The right to keep and bear arms preexisted the 2nd Amendment. The 2nd is not the source of that right.
yes, except you argue that a state can invalidate it with a new law. Because while you argue a fairly unusual point of view, a court today ruled Chicago can take away the right to own a gun. NRA wants THAT decision overturned, what is your solution? You don’t want it appealed, so you want it to stand in Chicago?