The gun control debate, like all debates with the left, is reducible to the question of whether we are individuals who make our own decisions or a great squishy social mass that helplessly responds to stimuli. Do people kill with guns or does the availability of guns kill people? Do bad eating habits kill people or does the availability of junk food kill people?
To the left these are distinctions without a difference. If a thing is available then it is the cause of the problem. The individual cannot be held accountable for shooting someone if there are guns for sale. Individuals have no role to play because they are not moral actors, only members of a mob responding to stimuli.
You wouldn’t blame a dog for overeating; you blame the owners for overfeeding him. Nor do you blame a dog for biting a neighbor. You might punish him, but the punishment is training, not a recognition of authentic responsibility on the part of the canine. And the way that you think of a dog, is the way that the left thinks of you. When you misbehave, the left looks around for your owner.
The cult of the left believes that it is engaged in a great apocalyptic battle with corporations and industrialists for the ownership of the unthinking masses. Its acolytes see themselves as the individuals who have been “liberated” to think for themselves. They make choices. You however are just a member of the unthinking masses. You are not really a person, but only respond to the agendas of your corporate overlords. If you eat too much, it’s because corporations make you eat. If you kill, it’s because corporations encourage you to buy guns. You are not an individual. You are a social problem.
Individual behavior is a symptom of a social problem. Identify the social problem and you fix the behavior. The individual is nothing, the crowd is everything. Control the mass and you control the individual.