Coxe was a prolific political writer of the times. Several of hi writings are included in the federalist papers.
But even throwing Coxes opinion(s) out of this argument, what have you to say about Hamilton? Or Patrick Henry? Gonna say they aren't founders, too? Because it is quite obvious they agree with Coxe that the citizenry should have access to every arm available to a standing army.
And I can only conclude you are as ignorant of weaponry as you are of history. Grape shot doesn't require people to line up. A 10 pounder with a grape shot canister is like a 3" sawed-off shotgun firing 50X .65 caliber pellets. They could cut a swath through a line of close-order troops 15 feet wide and three lines deep. In short, people do not have to "line up" to have a cannon firing grape shot perform quite well in taking out a whole slew of people with one boom.
I will say this about limiting arms to the people: I believe that there should be a limit on any weapon or weapons system which involves classified technology. I also believe certain weapons should have a required training class included in its purchase. LAW rockets, for instance are not something one just picks up and uses without training.
Otherwise, the only reason for limiting access to the people is based on mindless fear and mistrust, and or liberal intent of an eventual totalitarian socialist state. Funny how you trust the government, who has a history of screwing you over, more than your neighbors whose history is most likely leaving you alone.
(Or, have you given your neighbors reasons that make you nervous about their arms collection?

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