If you really want to save lives, you should support the open sale of machine guns without any caveats.
If you have ever learned to fire one of these you quickly find out that in the hands of the inspired but uninstructed they are one of the most useless weapons ever created.
And the benefit is… This type of weapon would most often attract those who are specifically NOT instructed.
The inability of the typical user to support, operate, let alone maintain, such a firearm with any effectiveness would most definitely save lives.
Essentially we would be “de-lethalizing” those who might most concern us.
(I look forward to your “rebuttal’s”, but you should be ready to defend them with substance. For those of you who are familiar with the history behind the Machine Gun Act will be best equipped… but I’m ready for you too. Should be fun.)