Do human rights come from sociology instead of biology?

The claim that human rights are merely social assignments rather than grounded in biological reality confuses recognition with existence. Societies certainly play a role in recognizing, protecting, and enforcing rights—but that does not mean they create those rights from nothing. A fetus can be acknowledged as a human being, yet some argue that rights depend entirely on what a society decides to value. History shows why that view is dangerous. Practices like abortion and infanticide have existed for millennia, but longevity alone has never been a reliable guide to moral truth. Slavery and rape were also widespread across cultures and eras, yet their prevalence did not make them morally acceptable.

Notably, it is only relatively recently that societies have formally named slavery and rape as violations of human rights. That historical delay does not imply these acts were once morally permissible; it reveals that societies can fail—sometimes for a very long time—to recognize and protect the rights that already belonged to certain human beings. Today, slavery is viewed with horror, along with an acknowledgment that grave injustices were committed against people who should have been treated as rights-bearing humans all along.

By the same logic, the long history of abortion does not establish its moral legitimacy. If societies can be wrong about who counts and whose rights matter, then the question is not whether a society chooses to grant rights, but whether it is correctly recognizing the rights of all humans. When a fetus is already recognized as human, denying protection is not a neutral social decision—it is a moral failure to extend human rights where they belong.