Why on earth would you jump straight to that conclusion? Even if the firearm was drawn, which is a huge if assuming the carrier was attacked, almost all defensive gun uses end before a shot is fired.
Someone carrying a firearm should be more willing to nonviolently confront a thief than someone that's unarmed.
...but...theres dumb people everywhere, so when you decide to shop lift in Texas the risk profile is certainly different than it is in CA.