Some people, avid hunters or not, gun enthusiast or not, would rather not party or have a burger in places where many strangers openly carry, nor want to carry themselves regardless of threats of a mass shooting event, when literally any large (Or small) gathering is a soft target.
I know guns don't kill people but fact is they are a dangerous tool for dangerous people. Anybody with one is potentially dangerous no matter the brand, make, or model, functionality, or design.
There is no such thing as a safe zone, and motives matter little to victims of the badly intended. The notion that there is NOTHING we can do about it is the real problem to be solved.