My point earlier was that people don't neatly sort themselves into "law-abiding citizens" and "felons" until after they've committed a crime. A law-abiding citizen can turn into a felon at any moment.
And, of course, this is in the context of the gun control debate, where you can't issue guns to only law-abiding citizens because you have no clue which of those law-abiding citizens are going to commit a felony and magically become a felon
Of course "a felon has previously committed a felony" is tautological. But "a person who has committed a felony is substantially more likely to commit serious crimes in the future" isn't.
It's a well-established empirical claim, and that's why they're prohibited persons.
As for magically predicting whether someone will become a prohibited person: we can’t, and even if we could, that would mean preemptively restricting a constitutional right.
> These laws primarily harm law-abiding citizens — who were never the problem in the first place — far more than they restrict prohibited persons from acquiring guns.
When you sell a gun to a law-abiding person, you have no idea if that person is going to become a felon or not. There is no hard line between the two, any law-abiding person can become a felon at any point.
This is why the rest of the world restricts people from owning guns.