Confiscate most guns in the country, and how it could be done

[Lizzie Poppet]

13. Only issuing licenses to security personnel or subsistance hunters?

That dooms any such plan to failure right there, I suspect. It would in effect prohibit gun ownership for at least a hundred million or so Americans. Such a prohibition, if not actively and aggressively enforced, would be a joke. People would ignore it, and the main result would be an enormous barrier between law enforcement and millions of Americans. It would create a barrier to cooperation with the police that was not there before.

Active enforcement caries its own set of problems, and they're even worse. For one thing, do not for even a moment think it wouldn't be forcibly resisted. It would be, period. I'd also caution against thinking that the police are even remotely up to the task of forcible confiscation. They are vastly outnumbered and for the most part outgunned. The "us vs the world" insular police culture probably means they'd try to carry out such orders against fellow Americans...but they'd fail

That leaves the military. Assuming that you started with repealing posse comitatus, you'd still be faced with the fact that the US military these days has a noticeably conservative leaning to it. The majority of is members would oppose disarmament of US citizens and if ordered to do so, I have no doubt vast numbers would refuse. US military training and discipline, while effective, very deliberately avoids creating cop-like insularity (because that leads to things like coups and military juntas...). Under such circumstances, this would fragment the military. You would have to figure out a way to fundamentally change US military culture, and that would likely be the work of at least a generation.

That moon launch you mention is a simple task compared to what you propose, frankly.