If abortion is understood as the killing of a human being, the moral question isn’t about outcomes or social benefits, but about whether it is ever permissible to intentionally kill an innocent person. In moral and legal reasoning, appeals to “the common good” are not considered sufficient justification for killing. Societies routinely reject the idea that one person may be sacrificed simply because others might benefit. If that logic were accepted, then killing a vulnerable person to harvest organs and save several others would also be acceptable—yet nearly everyone agrees that this would be a grave injustice.
Killing is treated as morally permissible only in narrowly defined circumstances such as self-defense, where a person faces a direct, lethal threat and has the right to take action to preserve their own life. Applied to pregnancy, this means that when a pregnancy genuinely endangers a woman’s life, she should be permitted to receive medical treatment aimed at saving her life, even if the unborn child cannot survive as a result. Outside of such self-defense situations, however, intentionally killing innocent human beings—including those who are unborn—cannot be justified by appeals to hardship, social utility, or broader societal goals. Normalizing killing as a solution to problems undermines the very concept of human rights the common good depends on.
Key Takeaways
Killing innocent humans is not justified by appeals to social benefit or the “common good.”
Accepting killing for utility would logically permit practices like organ harvesting from the vulnerable, which society rightly rejects.
Self-defense is a narrow and distinct exception that applies only to direct threats to life.
Protecting human rights requires refusing to normalize the intentional killing of the innocent, including the unborn.