I had never thought of it like this, that they were referring to only the organized people's for the militia and not the general populace as a whole.
It is my understanding that, the intent of the framers was actually pertaining to the general populace, the idea of the militia being that, if needed, the people could form into a militia to ward off a tyrannical government, which includes a standing army that is following the orders of a tyrannical government. In other words, they were trying to protect the citizenry against a government that would use it's army against it's own citizens, and thus, every able bodied male between 18 and 45 was supposed to always keep certain provisions, such as rations, a nap sack, ammunition, and a weapon. Just in case they were needed on a moment's notice to stand against tyranny.
I had never really looked at it as separating people into organized and unorganized, though, I don't think that really applies to what the intent and meaning are.
As to the debate about the constitution allowing open carry or not, well, it really does, almost implicitly, state that open carry should be allowed. In the words "keep and BEAR arms...", it's actually implied in its own phraseology. To keep, meaning to own, and to bear, meaning to carry with you.
Anyway, it's interesting the different viewpoints. I'm going to have to take a more in depth look into the framers intent, and the federalist papers.
We really need to find out what exactly they meant by "the people", and by "the militia". Remembering that, words they used back then do not, sometimes, have the same meaning as they do today.