Not at all the case. Guns allow for the physically weak to still have a chance to defend themselves. On NPR I remember calling for the police to help as her ex was breaking into the home. They didn't have anyone anywhere near by and the woman had no weapons on her. The boyfriend ended up breaking in and attacking her quite badly. He didn't need a weapon and a weapon wouldn't have made what he did any worse, but it might have given her the chance for the victim to defend herself or scare him off.