While we are on gun control, I'll throw in my 2 cents.
I agree with gun control advocates, if we could limit guns completely crime would go down. Simply because lazy people would have to become a little more creative when they wanted to bump somebody off.
The problem is that limiting guns completely or drastically is impossible. There are two many pathways for crooks to get guns even in the face of legislation and enforcement. The cat is already out of the bag so to speak. Look at marijuana, illegal with stiff penalties for dealing it, but use even by high schoolers is fairly common. What makes people think they can do better with guns?
Because guns can't be kept out of the hands of crooks even with the best enforcement, gun control legislation, simply takes guns out of the hands of people that would abide by the law anyway.
So basically total gun restriction is impossible, just like perpetual motion machines.