NRO on self defense
""Stand your ground" is not a principle that endorses vigilantism, the quest to enforce the law unilaterally, but instead a principle that declares that public spaces do not belong to violent aggressors. This represents not the abrogation of law but rather the use of law to more justly determine the rights of aggressor and victim, granting greater rights to the victim and thus bringing the statutory law closer in line with natural law. When the state, by contrast, mandates that citizens retreat from aggression (a concept fraught with practical difficulties and dangers), then it does not limit violence, it instead empowers unlawful aggression.
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The Left has to change the subject to vigilantism because the case for self-defense is so manifestly obvious. Is the state respecting the fundamental rights of citizens -- including their right to life -- if it mandates passivity in the face of violent attack? Of course not. It does, however, respect the right to life when it empowers self-defense while also prosecuting those rare few who seek to mask murderous intent behind a self-defense pretext."