I totally agree with you, I don’t see the reason either. But something not being understandable to me personally doesn’t mean it should be illegal.
We should have strong restrictions in gaining access to these weapons, and heavy punishments for misusing them. Like leaving a firearm out in the open - obviously that should be severely punishable.
But permits exist for a reason, and as long as someone is careful, responsible, and fully complying with the law then I don’t see a problem.
I fully understand the worry though, and I’m not going to pretend like my opinion is infallible. Obviously what we have now just doesn’t work, and needs to be fixed.