Wheels, i'm sorry to hear you have to go through such experience.

From a european perspective, prevention is better then reaction. We invest more in target hardening (proper doors, locks, windows, fences). Last time I was in the US, I was rather not impressed by the exterieur doors and windows. My closet has a more impressive lock then they front door locks i have seen. My doors has 3 locks, extra pins on the hinged side and a anti-prybar bar.

Better to have a frustated thief on the outside and me having a good night sleep, then hoping you can shoot quicker then the bad guy.

A firearm is a last resort solution. From a security point of view, you need layers, that make it hard for the bad guy. Preferably a passive system, that doesn't require a person to do something. A firearm requires a awake and aware person near it to be usefull.