"Everyone should start carrying guns." Really? Are you kidding me? Like that will help and make us safer?
More guns in the hands of more people will only perpetuate violence.
As for people who label themselves "Christians" it is instructive to note that Jesus didn't say "Take up your weapons and follow me." But Jesus did say "Take up your cross and follow me." Which means: Instead of kill other people, die for them. If everyone did this (which will not of course happen on this earth) the world would be turned upside-down. Which means real churches should be gun-free zones, right?
Here's a quiz.
Which one is the Real Jesus?