The way the 5th is interpreted today, gives an extraordinary killing power to a single individual.  That is does not conform to the principles of democracy to have equal representation under the the law, nor is does it meet common sense standards for safety of the public.  I don't fault the founders, they simply couldn't know the lethality of weapons 200 years in advance.

For those who feel their hand weapons provide safety against a foreign nation or even a domestic political tyrant, guess again.   Match your hand weapons with targeting missiles or nuclear weapons and you are playing a fools game.  We have both covered with a standing military and internal civil law.

The 5th as it stands today hands over extrordinary killing power to individual citizens to do with as they please.  There's nothing democratic about a lethal weapon in settling any conflict.     It's a life threatening risk to the owner, their families and their neighbors and should be regulated.