Diuretic
Permanently confused
let's assume that it has shown to be true for a second that necessity is your only argument. That should put all objects, not just automatic weapons on an even playing field because if we're ONLY talking neccessity then there are no other vatriables in a play other than do I need this thing or not. That is why I ask is need really the only variable you are arguing?
I have a house full of stuff. It could be said I don't need it. But I do. If I want to open a can of food I need a can-opener to do it. I could do without a can-opener but it would mean I couldn't buy any canned food. Because I choose to have cannned food then I need a can-opener.
I was thinking about that when I made mention of recreational firearms use. I choose to go and shoot at target, I need a firearm to do so. I could do without a firearm but that would mean I couldn't go target-shooting. Because I choose to go target-shooting then I need a firearm.
That's my thinking on need. Maybe we can sort it from there.