The tribal-psychology argument explains something real: religion often binds groups, gives meaning, and can be misused. But explaining some human motives for religion is not the same as explaining away God or revelation.
The argument at its strongest
The objection says this: wherever we find human beings, we find rituals, sacred stories, taboos, and group identity. That pattern suggests religion is a product of the human mind under pressure - fear of death, need for belonging, moral control, and the desire to explain the unknown. Islam, on this view, is one successful example among many. Its scripture is then read as the work of a powerful religious movement, not as speech from God.
That is a serious argument. It is not foolish to notice that religion has social functions. The Quran itself knows that people inherit beliefs from tribes and parents, and it criticizes blind imitation.
And when it is said to them, "Follow what Allah has revealed," they say, "Rather, we will follow that which we found our fathers doing."
Quran 2:170
What anthropology actually proves
Anthropology can show that humans are religious creatures. It can show that rituals create loyalty, that myths may arise, and that some religious claims are false. It cannot, by that method alone, prove that all revelation is false. That would be like saying, "People often invent stories about kings, therefore no king has ever existed."
A social function does not settle truth. Food brings families together, but food is still real. Marriage creates social order, but love and family are not inventions merely because they have social effects. If belief in God gives moral structure and communal strength, that may be because humans fabricated it - or because humans were made for it.
Islam calls this natural orientation "fitrah": an inborn disposition toward recognizing the Creator, though culture can cloud or redirect it.
So direct your face toward the religion, inclining to truth - the fitrah of Allah upon which He has created people.
Quran 30:30
Every child is born upon the fitrah, then his parents make him a Jew or a Christian or a Magian.
Sahih al-Bukhari and Sahih Muslim
Why Islam is not answered by sociology alone
The question is not simply, "Do religions exist in tribes?" They do. The question is whether Islam's claim to revelation survives examination.
Islam asks people to consider creation, moral awareness, human dependence, and the Quran itself. The Quran does not present faith as a tribal badge, but as a summons to reason, conscience, and worship of the one Creator beyond tribe.
Were they created by nothing, or were they themselves the creators? Or did they create the heavens and the earth? Rather, they are not certain.
Quran 52:35-36
The Prophet Muhammad (PBUH) did not merely give his tribe a flattering myth. He condemned their idols, challenged their inherited customs, restricted vengeance, protected the weak, and called Arabs and non-Arabs to the same God. His message cost him safety, wealth, and status before it brought worldly success. That does not by itself prove prophethood, but it does weaken the claim that Islam is best explained as convenient tribal self-interest.
Classical scholars treated prophethood as something judged by signs: the truthfulness of the messenger, the content of the message, the moral fruits, the preservation of the revelation, and the incapacity of opponents to meet the Quran's challenge. These are not laboratory proofs, but neither are they mere psychology.
The burden of proof is not one-sided
The believer must give reasons, yes. Islam does not ask for blind belief. But the skeptic also carries a burden when claiming that consciousness, reason, moral obligation, and the ordered universe are ultimately products of blind matter with no divine source.
The tooth fairy comparison fails because Allah is not a small unseen creature inside the universe. Allah is the necessary Creator of the universe, the ground of existence itself. Still, Islam does not say, "You cannot disprove God, therefore believe." It says: look at existence, look within yourself, and examine the revelation.
We will show them Our signs in the horizons and within themselves until it becomes clear to them that it is the truth.
Quran 41:53
So the anthropology argument establishes that humans have a deep religious tendency and that religions can serve group life. It does not establish that God is unreal, that revelation is impossible, or that Islam is just another tribal invention. At most, it warns us not to confuse inherited identity with truth - a warning Islam itself gives.