Here we go again, seems not a thread goes by that you do not want to turn it in a caliber war. It gets old fast.Now here is the thing. In my home I have a full security system.I also have Duty size guns, Shotguns in all gauges, pocket guns and revolvers including Snubbies. And I am competent with all of them. And if I did use any including the smaller calibers, I could stop the threat.
Now may folks cannot handle the small guns well. And if you cannot then I understand, you need a larger gun. But that is a personal problem not a caliber issue.
Now getting back to the crime. Yes, in my many decades in the Alarm Industry, I saw many rapes, murders, break-ins etc. in high scale Homes. It is a huge myth that it does not happen in them.