Renee Good was killed after dropping off her six-year-old child at school. I agree with you, but people like her have children and are not trying to die in the street just for looking at somebody the wrong way. And it's one thing to open carry, it's another thing to become a trained and confident marksmen.
And as someone who has had half a dozen police officers simultaneously pointing guns at my head, mistaking me for someone else in public, once you're in that situation, escalation is only going to lead to death. Out here, police shoot you if your hand goes anywhere near your waist.
Alexander Hamilton explains his definition of what "well-regulated" is - and the purpose of a citizen militia - in contrast to the standing army in the Federalist Papers, No. 29. Most of the idea has become much more federalized than intended with the National Guard, but it has long since been misused for its intended purpose.
I think the most you can say is that they recognized that many male propertied white protestant Americans are American. Maybe some more qualifiers are necessary.
Why don't the people in Minnesota go open carry and let ICE agents think twice before drawing their weapons on people?