Two thoughts on the subject:

• how many lives and aggression prevented by the presence of armed and unarmed citizens ?
• the police come only after the aggression, so do not rely on it to protect us by avoiding aggression or by making it risky for the aggressor, so that protects us. ask the children of sarah alimi for example, my answer is nobody, we are alone when we are disarmed in the face of assaults of any kind.