To me, I think the collateral damage that may arise from FA weapons justifies their rarity.
I am liable for the rounds I fire.
If I shoot an intruder with a SA rifle and the bullet goes through him through my wall, and into my neighbors house. Nobody is going to make TOO big a a deal of it. I'll probably have to cover the cost of repairs.
If I shoot an intruder with a SA and the bullet goes through him through my wall, and into my neighbors leg inside his house. People aren't going to be too happy, but will realize that there was no way for me to predict that that would happen. I'll probably have to cover the medical bills.
If I shoot an intruder with a FA rifle, empty the mag and have 30 bullets go into my neighbors house. People are not going to be too happy. That would be grounds for reckless endangerment.
Darwin will clean the gene pool very quickly.
Since the second amendment was written before these weapons existed, doesn't it seem sort of illogical to apply it to FA guns.
The 1st amendment was written when only the quill pen and manual printing press were available. Are modern high speed printing presses not covered by the 1st amendment? What about the internet?
The Bill of Rights is an All-or-Nothing deal. Yes there are reasonable restrictions. however, like the common yelling "FIRE" in a theater example. It only allows for restricting activities that pose an immediate danger to others. yelling "FIRE" in a theater poses immediate danger to others. Yelling "FIRE" while in a park does not. Owning a rocket launcher does not by itself pose an immediate danger to others, thus does not pass scrutiny of "reasonable restrictions".
We could use the red herring of, "What about Nukes", but it's a non issue.
1. They are expensive. Anyone that could afford one wouldn't want one and anyone that would want one can't afford one.
2. Who is going to sell you one? (That would be one way of getting rid of Iran's nukes.)
3. There is nowhere you can safely use it. No matter what you do you are going to somehow be causing direct harm to someone else,meaning you're gonna get sued 8 ways past Sunday. At least with a TOW missile or an RPG I can go out to the middle of nowhere and blow up old cars without hurting anyone.