Worth noting, it is impossible to both have a gun for home defense, and be a "responsible" gun owner. Being a responsible gun owner implies the guns are properly locked up, away from ammunition, because kids regularly play with daddy's guns and kill each other and themselves, but if your gun is locked up in a safe separately from it's ammo like it is often legally required to be, there's no way you can actually use it for home defense.
But everyone still claims they are "A responsible gun owner" because all that actually means to the gun culture in the US is that you are white or rural or conservative.