Criticism of Islam

Lore & Background

Criticism of Islam has been present since its formative stages, with early expressions made by Jews, Christians, and some former Muslims like Ibn al-Rawandi. Medieval Muslim society also produced unorthodox voices such as Ibn al-Rawandi and Abū Bakr al-Rāzī, whose radical critiques of prophecy provoked rebuttals from theologians and philosophers. The eleventh-century poet al-Ma'arri was a critic of all religions, believing Islam does not have a monopoly on truth. Apologetic writings attributed to Abd-Allah ibn al-Muqaffa are not widely accepted as established fact, as his known works are translations and political writings. The Jewish philosopher Ibn Kammuna criticized Islam, arguing that Islamic law was less rational than Jewish law, rather than being absolutely incompatible with justice.

Reader's Guide

Criticism of Islam has shaped both interfaith relations and internal Islamic discourse for centuries. Early Christian reactions, such as those by St. John of Damascus, were shaped by theological opposition and political conflict, often favoring aggressive refutation over genuine understanding. During the Middle Ages, Christian church officials commonly represented Islam as a Christian heresy or idolatry, with understanding based more on inherited stereotypes than direct engagement. In the early modern period, thinkers like John Locke raised concerns about political loyalty and religious authority in Islam. The cultural critic Edward Said argued that Western views of Islam are particularly hostile due to religious, psychological, and political reasons, placing Islam in an inferior position as an object of study. The expansion of Islam has been criticized as spread by the sword, a view opposed by many historians who see it as a multi-faceted phenomenon involving political, social, and economic processes. Muslim scholars have historically responded through apologetics and theological defenses, and the contemporary era sees criticism regarding Muslim immigrants' assimilation in host nations.

Did You Know?

• Early Christian critic St. John of Damascus criticized Islam as a Christian heresy and attacked the veneration of the Black Stone, but did not conflate Islam with pre-Islamic idol worship.
• The eleventh-century poet al-Ma'arri was an antinatalist and critic of all religions, known for his pervasive pessimism.
• The philosopher John Locke argued that Islam's fusion of religious and political authority raised concerns about Muslim subjects' allegiance to Christian governments.

Who Speaks Out and What They Challenge

Criticism of Islamism comes from a remarkably broad coalition. Non-Muslim political scientists and scholars alongside Muslim modernists and liberals have all taken aim at the movement's core assumptions. Names like Maajid Nawaz, Reza Aslan, Abdelwahab Meddeb, Khaled Abu al-Fadl, Gilles Kepel, Olivier Roy, and the Indonesian organization Nahdlatul Ulama represent a spectrum of voices united by opposition to specific Islamist tenets. The targets of their critique are consistent: the insistence that Islam functions as a comprehensive governing system rather than solely a faith; the claim that historical Sharia constitutes a single, universal legal code accessible to all humanity and indispensable for genuine religious practice; and the imposition of restrictions on free expression designed to punish apostasy or perceived insults to the religion. This diversity of critics—spanning continents, faiths, and academic disciplines—suggests that the objections are not confined to any single cultural or theological camp but reflect a shared concern about the movement's political and legal ambitions.

How the Movement Took Shape

Rather than viewing jihadist Islamism as a spontaneous religious awakening, scholar Khaled Abou El Fadl traces its emergence to a chain of structural disruptions. First, the traditional independence of Islamic jurists—who had historically tolerated divergent schools of thought and kept extremism at the margins—was eroded when post-colonial states seized the private religious endowments (awqaf) that had funded them. Stripped of financial autonomy, most jurists became salaried state employees, losing their legitimacy on social and political questions. Into this vacuum stepped Saudi Wahhabism, backed by tens of billions in petroleum revenue and an aggressive proselytizing apparatus. It presented itself not as one interpretive school among many but as the singular, pristine straight path, characterized by strict literalism and deep hostility toward intellectualism, mysticism, and sectarian diversity. Layered on top of this doctrinal narrowness were populist narratives of Muslim humiliation inflicted by despotic domestic rulers and interventionist foreign powers, giving the movement an emotional and political resonance that pure theology alone could not have achieved.

The Human Cost of Challenging Orthodoxy

The suppression of dissent within Islamist circles has produced a catalogue of tragedies spanning decades and multiple countries. Egyptian Nobel laureate Naguib Mahfouz was stabbed in the neck by assailants, left crippled for life. Feminist novelist Nawal El Saadawi faced repeated court proceedings, and professor Nasr Abu Zayd was charged with apostasy, with his wife ordered to divorce him. Political scientist Gilles Kepel observed that in 1990s Egypt, moderate and extremist Islamists complemented each other: a revered sheikh testified that Foda's critics deserved death, framing the killers as fulfilling a religious duty in the absence of an Islamic state.

When the Target Widens

What researchers Matteo Sisto and Samir Gurung term Neo-Takfirism marks a disturbing escalation: Islamist groups shifting their dehumanization from liberal or secular intellectuals to ordinary, mainstream Muslims. During the Algerian Civil War, the jihadist group GIA declared anyone who did not actively support its jihad a government collaborator and apostate, then slaughtered entire villages, murdered foreigners, and executed Algerians for infractions ranging from infidelity to wearing Western clothing. In Iraq, Sunni insurgents applied similarly expansive takfir logic; by mid-2006, at least two falafel vendors in Baghdad were killed on the grounds that falafel did not exist in the seventh century and therefore constituted an un-Islamic innovation. Journalist George Packer noted this reflected how far followers of Sayyid Qutb had progressed in their willingness to declare apostasy and carry out lethal enforcement. By mid-2014, groups including Al Qaeda and Daesh continued this trajectory of broadened takfir.