Solutions definitely should be, but here is the issue that's tough. Probably 5 in 20 Million ARs are used in a crime each year.
But if you say meh, that's infinitesimal let's not worry about it, which is more or less be NR et als. response, you are in fact saying to someone who lost someone in one of those incidents "too bad, you're an outlier sucks to roll snake eyes"
Which is what Jim was saying on page 1.
Countries with zero ARs have zero ARs deaths, which is logical, people see that and they say why can't we do that... I math'd that out on one of these threads, it's really really hard.
Therefore I think you either say "too bad" which pisses of folks and gets you straight up bans, or you try what I'm theorized about which is putting forward your own plan, that while also won't solve the problem is a good faith gesture and gets you some things you want.
Which is how I arrived at something like a Universal gun license which is just a back ground check + finger prints + gun registration and then you get universal state reciprocity, internet sales direct to door with some sort of 2 factor identification, private sales by using an app instead of an FFL, and fully legal suppressors.
Essentially take on some red tape at the beginning to then eliminate it for the rest of your life.
Not saying that's exactly how it should work, but more the kind of thinking I wish folks would do... one might call it "bending over to liberals" another might call it pragmatically getting what they want.