Islam does not make a person's humanity depend on religion. It does, however, distinguish between universal human dignity, moral rank before God, and certain legal-political statuses inside a religious law.

The strongest form of the criticism

The objection has real force because Islamic law is not built on the modern liberal idea that every person has exactly the same public rights by virtue of being human. Classical law distinguished Muslim, protected non-Muslim, treaty-holder, enemy combatant, free person, and slave. It also treated belief as morally decisive: the Quran says a believing slave is better for marriage than an idolatrous free person.

Do not marry polytheist women until they believe. A believing slave woman is better than a polytheist woman, even though she may please you.

Quran 2:221

So the critic says: this is not just theology, but hierarchy. If faith affects marriage, political belonging, taxation, and social rank, then Islam must be denying intrinsic human rights and locating worth in religious status.

What the Quran actually grounds in humanity

The Quran does give human beings a dignity that comes before their religion. It speaks about the children of Adam, not only believers.

We have certainly honored the children of Adam, carried them on land and sea, provided them with good things, and favored them over many of those We created.

Quran 17:70

That is the basic category: human beings are honored creatures of God. This is why Islamic law forbids murder, theft, treachery, mutilation, and injustice against non-Muslims. The Prophet (PBUH) gave a severe warning about violating the life of a non-Muslim under covenant:

Whoever kills a person under covenant shall not smell the fragrance of Paradise.

Sahih al-Bukhari

The Quran also commands justice even toward those outside the Muslim community, so long as they are not fighting Muslims:

Allah does not forbid you from being kind and just toward those who did not fight you because of religion and did not expel you from your homes. Allah loves those who act justly.

Quran 60:8

This does not sound like a system where non-Muslims have no human worth. Their lives, property, contracts, family bonds, and protection can be legally sacred.

Different status is not the same as no rights

Islam does have hierarchy, but not the crude hierarchy the objection assumes. Faith gives a person moral rank before God. Public law also assigns different duties and rights to different communities. Jizya, for example, was a public tax attached to protection and exemption from Muslim religious taxes and military obligations, not a fee that purchases basic humanity.

Fight those who do not believe in Allah and the Last Day... from among those who were given the Scripture until they give the jizya willingly while they are under authority.

Quran 9:29

Classical jurists read this within the rules of war, treaty, and governance. It did not mean every Jew or Christian everywhere is to be attacked, nor that their life has no value unless paid for. Once under covenant, violating them was a grave sin.

Likewise, Quran 2:221 is about marriage and spiritual suitability, not a claim that a slave has more legal rights in every respect than a free non-Muslim. A believing slave may be better in piety, while a free non-Muslim may still possess property, legal capacity, family rights, and protection under law. The categories overlap; they are not a single ladder of human value.

What this proves, and what it does not

The objection does prove that Islamic law is not a modern secular rights theory. It does not treat religion as legally irrelevant. It gives the Muslim community a distinct constitutional identity, and classical law contains inequalities that many modern readers find difficult.

But it does not prove that Islam denies intrinsic human dignity. The Quran grounds honor in being from the children of Adam, commands justice beyond the Muslim community, and makes covenantal protection morally serious. Islam distinguishes between human dignity, spiritual excellence, and legal membership. Confusing those three makes the tradition look harsher, and also simpler, than it really is.

A fair judgment should say both things plainly: Islam is not egalitarian in the modern liberal sense, but neither is it a doctrine that strips non-Muslims of humanity or leaves them without rights.