We don’t need a 100% solution that covers every edge case, loophole, work around, self built, 3D printed, or whatever possibility.
We just need to add enough friction to the act that it’s hard enough and requires enough effort to deter most people.
The shooting event curve is not a straight line with respect to ease of gun access. Each small additional friction reduces a larger amount events early in the curve. That’s the part of the curve we need to focus on. Later, once ease of access is greatly reduced, there would be diminishing returns where the effort to reduce friction doesn’t reduce events by meaningful numbers.
