Does my natural right to keep and bear arms require the 2nd Amendment?
Depends on what you mean. The natural right exists, but whether the government recognizes it or not is no sure thing. Articulating it in the Constitution certainly helps the ability to hold on to it.
The Government has a tendency to interpret the Second Amendment in the same way you guys interpret Article II; As having a nonsensical meaning and causing stupid results.
The BEST argument against you is that YOUR interpretation produces stupid results. The founders weren't stupid.