So long as each and every gun owner is a member of a TRAINED MILITIA the second amendment makes sense.
The discussion generally omits one of the main reasons why local militias were considered to be so important: in the South, one of their main jobs was to chase down and bring back escaped slaves. The British, during the Revolution, made it a policy to declare that if the British won the Revolution, slavery would be abolished, so during the Revolution, there were LOTS of escaped slaves running free.
On the frontier, guns were needed to fight off Indians and hunt game for meat, especially during the winter. More importantly, these armed militias were used to hunt down slaves, and to show by their presence, as Kunta Kinte found out, that escape was very difficult.
If we had the laws that the Swiss have about guns and militias, we would largely eliminate a lot of gun deaths.
The state with the lowest rate of gun deaths? HAWAII. Hawaii has one fifteenth the rate of gun deaths as does Louisiana, which has the highest rate.
It is pretty hard to bring a gun into Hawaii without the required paperwork. Most travel to Hawaii is by air. Boats are checked when arriving as well, so it is pretty hard to get a gun ashore without proper paperwork. The low rate of gun deaths is not due to Jack Lord, Dano and the rest of Five-Oh.