My own personal theory: People who agitate for the banning of guns do so on the basis of an unconscious and unacknowledged fear of coming to grief at the hands of somebody holding a gun.

Paranoia is the fear that someone is subliminally directing a great deal of aggression at you. It is a personalized fear – you believe, not only that a threat exists, but that you yourself are the direct target of the threat. 

Briefly stated, they want to get rid of guns because deep down inside they’re paranoiacally afraid that someday, for some reason, they’re going to get shot at.