Who would you attack: Home A that has no guns, or Home B that has guns?
My point, the more gun control laws there are, the more it affects the lawful gun owner just trying to defend himself than it does any criminal.
We do not have a gun problem, we have a society problem and a mental health problem. Our culture is fascinated by violence (how many crime shows do we have on television?)
If I was robbing a house and I suspected the owner had a gun, I would be exponentially more likely to resort to preemptive deadly force (i.e. kill everyone in the house.)
If I believed the owner didn't own guns, I'd be extremely reluctant to use deadly force.
Why? Simple pros and cons analysis. If the owner of a house has a gun, than my most imminent danger is being shot. The logical response to that threat is to shoot first because then you're taking care of your most immediate and dangerous problem.
If the owner doesn't have a gun, the equation changes. Then, your biggest danger is going to prison. Shooting someone makes it much more likely this will happen- the gun shot will alert neighbors and murders tend to be investigated a lot more carefully than burglaries- AND the consequences of going to prison are exponentially increased if I shoot. Therefore, I will be much less likely to shoot if I'm robbing a house that does not have guns.
So let's take a third, and more realistic scenario: I'm going to rob a house but I don't know which homes have guns and which homes don't, but I do know that I'm in an area where guns are common. I will be forced to assume that whoever owns the house is armed and I will act accordingly, because getting shot is the most immediate and overwhelming danger.
Thus, a criminal with even the slightest desire for self-preservation will be more likely to act violently if he believes he may encounter a gun-owner. This extends outside of the house when you take concealed carry into consideration. In areas with large numbers of concealed weapons (legal or illegal) small incidents become much more dangerous- if you're a robber, you have to assume your target has a gun. If you're in a bar fight, same thing. The immediate danger of getting shot is greater than the delayed risk of going to prison, thus people have a greater incentive to respond to any potentially violent situation with lethal force.
The net effect of all of this is that even if one chooses to not carry, wide spread gun ownership (and especially concealed carry) makes life more dangerous for us all. If you were willing to do some serious mental gymnastics and explain away European crime rates vs American, you could argue that guns make non-violent crime less likely, but you can't deny that guns make any given crime (or even confrontation) exponentially more likely to turn deadly. As far as I'm concerned, concealed carry is as much a violation of my rights as it would be if the government tried to take away everyone's firearms.