2A was added in 1791, that's over 200 years ago. The Gatling Gun wasn't invented until 1862, almost 100 years later, so unless I'm ignorant about a certain type of gun from the 1790s-1860s period, there were no very rapid firing / automatic type weapons around at that time, at least comparable to what is available today. If I'm wrong here, please let me know.
You're wrong on this point.
This was Thomas Jefferson's favorite rifle. It's a repeating .41 caliber rifle with a 22 shot capacity.
https://en.m.wikipedia.org/wiki/Girandoni_air_rifle
He loaned two of these rifles to the Lewis and Clark expedition. That expedition would have likely failed if not for the high capacity and faster rate of fire of those rifles.
The founders were perfectly well aware of high capacity arms with a higher rate of fire.
The idea that they didn't is a myth perpetuated by the historically ignorant.
Also, early variants of the gatling gun were invented in 1712 known as the "Puckle gun".
https://militaryhistorynow.com/2014...o-was-the-first-to-invent-the-rapid-fire-gun/
With this said, how do you feel the founding fathers would have written the 2A knowing the issues that mass shootings are causing, especially in the US ?
At the time of the ratification of the Bill of Rights, it was perfectly legal for an American citizen to own a fully armed warship capable of leveling entire coastal cities.
Remember the advice of Benjamin Franklin:
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety."
-Benjamin Franklin
Given the fact they were already well aware of and privately owned high capacity arms with high rates of fire, I'm confident in saying they wouldn't trade in essential liberty for a false feeling of security.
And why do people think that an amendment written 200 years ago, before "assault rifles", mass shootings, high capacity magazines (etc.) is the only argument they need ?
Rights are the necessary conditions of one's proper existence. Nothing more, nothing less.
Rights are an absolute value. You can't trade a little bit away, or barter a little bit of your rights away. You're rights are either being respected or violated.
The 2nd Amendment doesn't grant any rights, it enshrines into law a natural right we all have.
When I read comments on news sites, forums and the like, I frequently see " the second amendment says...", and that just seems so weird to me considering how much society has changed, and the fact that the founding fathers had no knowledge of what was to come 200 years ahead.
As I've established, the founders knew perfectly well what direction technology was going due to the fact that they personally owned the cutting edge arms of the day.
Glad I could help!