Criticism of Islam has been present since its formative stages, and early expressions of disapproval were made by Christians, Jews, and some former Muslims like Ibn al-Rawandi.
[7] Criticisms of Islam have also been directed at historical practices, like the recognition of slavery as an institution[8][9][10][11] as well as Arab imperialism impacting indigenous cultures.
[15][16][17][18] Amid the contemporary embrace of multiculturalism, there has been criticism regarding how Islam may affect the willingness or ability of Muslim immigrants to assimilate in host nations.
[46] This matches the common view in Europe during the Enlightenment period about Islam, then synonymous with the Ottoman Empire, as a bloody, ruthless, and intolerant religion.
[47] More recently, in 2006, a similar statement of Manuel II,[a] quoted publicly by Pope Benedict XVI, prompted a negative response from Muslim figures who viewed the remarks as an insulting mischaracterization of Islam.
[60][61] The Christian theologian Philip Schaff (d. 1893) praises the Quran for its poetic beauty, religious fervor, and wise counsel, but considers this mixed with "absurdities, bombast, unmeaning images, and low sensuality.
[63] Similarly, the secular author Ibn Warraq gives Surah al-Fatiha as an example of a passage which is "clearly addressed to God, in the form of a prayer.
[73] Muslim critics of the hadith, known as Quranists, reject its authority on theological grounds, arguing that the Quran itself is sufficient for guidance, as it claims that nothing essential has been omitted.
[74] They believe that reliance on the Hadith has caused people to deviate from the original intent of God's revelation to Muhammad, which they see as adherence to the Quran alone.
[83][84] The traditional view of Islam has faced scrutiny due to a lack of consistent supporting evidence, such as limited archaeological finds and some discrepancies with non-Muslim sources.
[85][86]: 23 In the 1970s, a number of scholars began to re-evaluate established Islamic history, proposing that earlier accounts may have been altered over time.
[4][6] In one instance, the Jewish poet Ka'b ibn al-Ashraf provoked the Meccan tribe of Quraysh to fight Muslims and wrote erotic poetry about their women,[88] and was apparently plotting to assassinate Muhammad.
[90] Such criticisms were countered by the historian William M. Watt, who argues on the basis of moral relativism that Muhammad should be judged by the standards and norms of his own time and geography, rather than ours.
[91] The fourteenth-century poem Divine Comedy by the Italian poet Dante Alighieri contains images of Muhammad, picturing him the eighth circle of hell as a Heresiarch, along with his cousin and son-in-law Ali ibn Abi Talib.
"(Quran 9:29)[105] However, the Islamic hadiths and scholars such as Dr Zakir Naik refer to fighting and not to trust "non-believers" and Christians in certain situations or events such as during times of war.
[130] Some slaves had high social status in the Muslim world, such as the Mamluk enslaved mercenaries,[132] who were assigned high-ranking military and administrative duties by the ruling Arab and Ottoman dynasties.
[135] According to sociologist Rodney Stark, "the fundamental problem facing Muslim theologians vis-à-vis the morality of slavery" is that Muhammad himself engaged in activities such as purchasing, selling, and owning slaves, and that his followers saw him as the perfect example to emulate.
[138][9] Reports from Sudan and Somalia showing practice of slavery is in border areas as a result of continuing war[139] and not Islamic belief.
"[150] According to Islamic law, apostasy is identified by a list of actions such as conversion to another religion, denying the existence of God, rejecting the prophets, mocking God or the prophets, idol worship, rejecting the sharia, or permitting behavior that is forbidden by the sharia, such as adultery or the eating of forbidden foods or drinking of alcoholic beverages.
[151][152][147] The majority of Muslim scholars hold to the traditional view that apostasy is punishable by death or imprisonment until repentance, at least for adults of sound mind.
[160] According to Yohanan Friedmann, "The real predicament facing modern Muslims with liberal convictions is not the existence of stern laws against apostasy in medieval Muslim books of law, but rather the fact that accusations of apostasy and demands to punish it are heard time and again from radical elements in the contemporary Islamic world.
[165] The English historian C. E. Bosworth suggests the traditional view of apostasy hampered the development of Islamic learning, like philosophy and natural science, "out of fear that these could evolve into potential toe-holds for kufr, those people who reject God.
[47] Karen Armstrong, tracing what she believes to be the West's long history of hostility toward Islam, finds in Muhammad's teachings a theology of peace and tolerance.
[202] According to Mahatma Gandhi, the leader of the 20th-century Indian independence movement, although non-violence is dominant in the Qur'an, thirteen hundred years of imperialist expansion have made Muslims a militant body.
[36] Years later however, Al-Qaeda has yet to succeed in gaining the support of the majority of Muslims and continues to differ from other Islamist organizations in terms of both philosophy and strategy.
Women must observe a period of celibacy (idda) to allow for the identification of a child's legitimate father, and a woman can only be married to one person at a time, be it temporary or permanent.
[242][243][244][245] On 14 January 2009, the Catholic Portuguese cardinal José Policarpo directed a warning to young women to "think twice" before marrying Muslim men.
Conservative Muslims in particular (in common with some Christians and Jews) see women in the West as being economically exploited for their labor, sexually abused, and commodified through the media's fixation on the female body.
They saw Islam as an obstacle to assimilation, a view that was expressed by one of the spokesmen of colonial French Algeria named André Servier.
[258] The Victorian orientalist scholar Sir William Muir criticised Islam for what he perceived to be an inflexible nature, which he held responsible for stifling progress and impeding social advancement in Muslim countries.