I never wanted to "ban guns".

[wnylib]

15. But the new government was established as a republic,

and the former colonists/New American citizens were not anti government.

The constitution says the purpose of a militia is to quell insurrections, not to initiate them. And to fight against external threats. In those days that meant threats from other colonizing European nations in North America, and against Native Americans due to the poor relations between European Americans and the Native people.

The idea of militias as anti government armed groups developed much later among vigilante minded paranoid people.