If equal rights are understood as protections owed to all members of a shared moral community, abortion does not secure equality—it undermines it. Equality is most coherent when it is tied to opposition to violence against innocent members of that community. In an “equal right to life” framework, every being who belongs to the community is entitled to the same basic protection from intentional harm.
There is broad agreement that adult humans and human infants belong within this community regardless of race, sex, ability, or social status. The real challenge is identifying what qualifies someone for inclusion in a way that protects infants without arbitrarily expanding rights to animals like squirrels. Common alternatives fail under scrutiny. Basing rights on self-awareness would exclude newborns, while grounding rights in minimal perceptual abilities would include non-human animals.
A more consistent and non-arbitrary foundation is human nature itself. Human beings are the kind of entities that naturally develop capacities like reasoning and self-awareness, even if those capacities are not yet expressed. Infants qualify on this basis despite their immaturity, and the unborn qualify for the same reason. If equality rests on shared human nature, then excluding the unborn fractures the very principle that makes equal rights meaningful. On that understanding, abortion does not extend equality to women; it creates a system where one group’s interests are protected by denying another group’s most basic right.
Key Takeaways
Equal rights are most coherent when grounded in shared human nature, not in variable abilities like self-awareness or perception.
Any definition of equality that protects infants but excludes the unborn relies on an arbitrary cutoff rather than a principled distinction.
Abortion does not create equal rights if it requires denying the unborn inclusion in the same community protected from violence.
True equality forbids granting one class of humans the power to intentionally kill another class of humans who share the same nature.