Because no one can answer it.
The Constitution has nothing to do with guns getting into the hands of criminals, and that's the problem.
I don't give a shit what someone in 2021 interprets what someone from 1790 might have said anonymously...you can't pick and choose which parts of the Constitution are originalist, and which aren't.
It either ALL is, or none of it is.
if it all is, then we can only apply the laws written in there to the time they were written, which would mean that the 2A, when it was written, spoke of the arms of the day, which were muskets and blunderbusses. If you want a musket or blunderbuss, GO FOR IT. But no citizen should have arms comparable to our standing army. That's just begging for 35,000+ deaths a year.
The reason that no one can answer it, maybe, is that there is no answer.
The Constitution affords citizens guns rights--directly.
The Constitution DOES NOT strip convicted felons from citizenship as far as I can see.
If we make a thing of it, we may discover that depriving convicted felons of gun ownership may itself be unconstitutional.
On other subjects, I've made it clear that I'm a partitionist.
I see no future for America in its current fifty state format.
If we have a new blue nation, we'd also have a new constitutional convention.
Even in BLUE AMERICA, however, I'm not sure that we could get a firearms ban on private citizens.
Americans are too accustomed to being armed,
and willing to get our asses capped in order to have that right.
It's a cultural thing, but if I'm wrong, you'd finally get your desired gun laws.
Everybody doesn't hate hip hop or country music as much as I do.
Everybody doesn't fear guns as much as you do.
But maybe enough people do--we'll need a new country to find out.