To be clear: I proposed, if even possible, that would actually be a good way to resolve this debate.
"Yes, you can keep your guns, they're just totally ineffective at harming people now".
I wasn't taking a stance for/against gun control, or more broadly for/against the US Constitution. Telling someone to "just move to [some other country]" is needlessly hostile; the message it sends is, "You aren't welcome here."
The author of this post proposed a straw man of a "crazy sounding idea" to illustrate "solving the wrong problem"; what I'm saying is that it would be the right problem to solve if it were even possible.
(As far as my actual politics go on this matter: I'd like to see mandatory gun safety taught in places where they aren't illegal to prevent accidental misuse. Friends of friends have lost their lives to mishandled firearms. That's all you'll get out of me on HN.)
Being in Europe doesn't seem to have helped the editors of Charlie Hebdo …
I don't know, making humans immune to bullets would be an elegant solution to the gun control debate which doesn't involve disagreements over the second amendment, and would make everyone win.