I think the biggest thing you're overlooking is mindset.
The criminals don't care what they laws are, so you'll never get their guns. And if by some chance you do, they just find another weapon they can control. Homemade guns or knives.
Now the mindset of the lawful gun owner. We believe we have a right to defend ourselves. What I own to do that is none of the government's business. I'm not going to give up control of my life, and life-saving decision making, to the government.
Then you have enforcement issues. Guns tend to be a problem more so where there's a concentration of criminals. Ie: big cities. Out in the suburbs, we have no issues with guns. Likewise, law enforcement follows the same concept. City cops think no one should have a gun but them. Suburban cops can often depend on legal gun owners for assistance.
I'm a suburban cop. I have sworn to uphold the Constitution. I will not take guns away from my citizens. And I will not surrender my personal collection of guns.
Your process will turn 100million lawful citizens into "criminals."
That's the problem: the mindset of the gun owner. You don't want to give up the power to kill anyone anytime you like.
You're a cop, how about the accidental firing of guns by their children? How many of those have you seen? The technology could prevent that.
The gun's design hasn't changed since it was invented. Don't you think its time for a little modernization?
We have smart homes, phones, and cars. We even have smart toilets. Why can't we have smart guns?
Nah, you're a little off base there. You think the gun owner wants "the power to kill anyone anytime"... that's where you are out of touch. We want the ability to defend ourselves and our loved ones FROM people who think they can kill anyone anytime.
I have no problem with a smart gun of sorts... like fingerprint unlocked guns.. to prevent careless gun owners children from using them. But that needs to be voluntary, not mandated. As far as how many accidental shootings I've seen.... over 18 years, I've seen 4 total. Two were nobody getting hit, just a hole in the floor, because they followed at least one of the gun safety rules. The other two were gang banger criminals accidentally shooting themselves. One in arm. One in leg. Both were legally prohibited from possessing firearms.
It's not the mindset of the gun owner you need to worry about, it's the mindset of the criminal.