Exactly.

GFZs just let everyone know where the sitting ducks are located because THEY = AN ANNOUNCEMENT THAT THERE'S NO ONE THERE WHO'S GONNA BE ABLE TO ADEQUATELY DEFEND THEMSELVES.

Unsurprisingly, mass shootings DON'T tend to happen at (fully-activated/uncucked) police stations or at gun stores -- Why? Shooters KNOW the people at those places CAN AND WILL DEFEND THEMSELVES and that they'd get taken out before they could execute their plans.

Simple, basic logic that's been distorted by MSM, social media, politicians and (non-)experts via fear porn/appeal to emotion to mislead the sheeple and normies into supporting "their" narrative/agenda.

If "they" didn't believe in the ability of armed persons to defend, "they" wouldn't have their own (armed) bodyguards/personal security details. And, in a more extreme example, "they" wouldn't send arms to "support" countries/areas/groups that "they" don't want to see overtaken/injured/killed.