I don't believe anyone here has suggested that the power of the gun will solve all the problems
(Snip) No argument from me...
On your other point, I can't completely agree with you that all are born into the world as tabula rasa. I firmly believe that just like other animal species, there are those which are born "good" and there are those which are born "bad." I do agree that society plays a major role and that in the "majority" of cases, criminals are created rather than born that way. As a long time breeder of dogs, I've witnessed puppies which were simply born bad. Talk to literally "any" experienced breeder and you will find that they agree with me. Their environment and handling by humans is virtually identical to their siblings yet they are aggressive event to the point of viciousness from the time they are old enough to see. Good breeders "bucket" these individuals to remove whatever genetic material is responsible from the gene pool. We are not allowed to do this with humans and there are those sociologists who try to blame the environment for all their bad behavior which is genetically driven. There are "bad" children who will eventually become bad adults and spend most of their lives incarcerated in either mental hospitals or in jails. We are no different that other members of the animal kingdom in that respect though we may delude ourselves into thinking otherwise. The human mind is a variable and behavior is driven by variously the environment, our hormones and our genetic makeup.
Lin
This is a complex question. As someone whose trained dogs for a living, I've always found this a troubling question. And as student of human nature, even more so. I've found that
most of these dogs simply need a completely different approach in order to channel this aggression. While it's not difficult to train dogs, it's always difficult to "teach' dogs. But people are not dogs, and can be taught.
And then there are those dogs, and probably people, who are damaged before birth, or early in their lives. Something missing. Not much can be done with them until science finds an answer
But overall I don't look at this as a "genetic" problem.
Dave