The right to feel safe is what people on both sides of the issue are arguing though. Of course there is no right to feel safe, but really your right to carry should not trump another person's right life, or liberty, or the pursuit of happiness.
This is especially true when you consider the issue of violent crime. A rather large and undeniable aspect of crime prevention is that allowing crime to take place not only has 'tangible' repercussions (loss of life, money, property, etc.), but also less tangible repercussions that lead right back to property, money, life, etc. Think about it. Nobody wants to go looking for a farmers market in the ghettos of Detroit (well, in Detroit itself ) because of the fear of crime.
We all know that standard economics and crime don't mix well because of this. I don't think it's a huge stretch to state that violence is probably the biggest aspect of crime that people are afraid of. Sure, they don't want to loose money or property but come on, if it's my wallet or my car or my life...the wallet and the car are going first.
If it's violence that people fear, well, guns are violent. Violence is their entire purpose. You can argue that their violence (guns) is somehow different or better or more desirable depending on where it comes from (a criminal with a gun or a CCW permit holder trying to defend himself or others), but the bottom line is that most people would rather avoid violence all-togehter. Having more guns around, from this perspective, scares those who don't or won't carry.
This means that increasing the number of people who can potentially commit violence, even in defense, worries the average person. This creates exactly the same type of negative, less-tangible repercussions that crime does, and leads right back to the primary issues of life, liberty, and the pursuit of happiness that frankly I cannot see as less fundamental than the right to carry a gun anywhere.
Dunno, Joe. It seems to me that any way you approach this, there are equally valid points for and against. Again, the best approach in such a context is a compromise, not an absolute 'win' either way.