If the 100,000 (a year?) correct is indeed correct, then we should look into the statistics a little deeper.
If 10,000,000 people are carrying firearms regularly, that means only 1% will pull them out to stop a crime. Maybe some of those crimes would have been stopped without the firearm. Maybe the crime escalated because the perpetrator saw a gun pulled and needed to "defend" himself. All these incidents should become part of the statistics, not just the stories we like to hear.
Then there is the hassle of carrying a concealed weapon day-after-day, year-after-year for the 1% chance it will be useful. Strapping on a holster has a small physical toll, which could turn into a mental toll.
We should also add in when these concealed weapons become part of an accident. It's not hard to envision a case of road rage and the gun is pulled. Or a toddler finds Dad's gun in a holster while Dad is taking a shower.
There are pros and cons to all social issues. Until we can freely discuss them all, we won't find the right balance.