Thank you for this great thread idea, @Rival. I think it is necessary to expose the misconception that Islam is a religion of tolerance, peace, or pluralism.
I have lived my entire life with Muslims in two Muslim-majority countries, and Arabic is my native language. That allows me to understand the Qur'an better than people who don't know Arabic, and it also allows me to target the bare bones of Islam instead of "arguable" teachings that are uncertain. I'm not even going to use hadiths, not even saheeh hadiths (i.e., authentic hadiths as determined by the majority of hadith scholars), to support my arguments. I'm only going to use Qur'anic verses since it is undeniable that those are parts of the religion.
First, let's take a look at the concept of Hell in Islam. This one, in my opinion, is one of the most morally repulsive aspects of the religion.
Who goes to Hell according to the Qur'an:
Second, what kind of torture do those people supposedly face in the Islamic concept of Hell?
But the God of Islam is supposed to be all-merciful, right? Well, apparently not to everyone:
Sexism in the Qur'an:
Lashing prescribed as a punishment in the Qur'an:
(Source of all Qur'anic translations above.)
My conclusion: Islam is not a religion of peace, and saying that it is usually means one of two things: the person who says so is either overlooking the above verses (sometimes on top of a plethora of authentic hadiths, in the case of Muslims who accept hadiths), or they see no signs of intolerance or hatred in those verses. In either case, the texts themselves don't change, further proving that the main problem of promoting intolerance and hatred lies with the religion itself, not just many of its followers.
I have lived my entire life with Muslims in two Muslim-majority countries, and Arabic is my native language. That allows me to understand the Qur'an better than people who don't know Arabic, and it also allows me to target the bare bones of Islam instead of "arguable" teachings that are uncertain. I'm not even going to use hadiths, not even saheeh hadiths (i.e., authentic hadiths as determined by the majority of hadith scholars), to support my arguments. I'm only going to use Qur'anic verses since it is undeniable that those are parts of the religion.
First, let's take a look at the concept of Hell in Islam. This one, in my opinion, is one of the most morally repulsive aspects of the religion.
Who goes to Hell according to the Qur'an:
Qur'an 2:24 said:But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.
Qur'an 4:56 said:Indeed, those who disbelieve in Our verses - We will drive them into a Fire. Every time their skins are roasted through We will replace them with other skins so they may taste the punishment. Indeed, Allah is ever Exalted in Might and Wise.
Second, what kind of torture do those people supposedly face in the Islamic concept of Hell?
Qur'an 22:19 said:These are two adversaries who have disputed over their Lord. But those who disbelieved will have cut out for them garments of fire. Poured upon their heads will be scalding water
Qur'an 22:20 said:By which is melted that within their bellies and [their] skins.
Qur'an 22:21 said:And for [striking] them are maces of iron.
Qur'an 22:22 said:Every time they want to get out of Hellfire from anguish, they will be returned to it, and [it will be said], "Taste the punishment of the Burning Fire!"
Qur'an 55:43 said:This is Hell, which the criminals deny.
Qur'an 55:44 said:They will go around between it and scalding water, heated [to the utmost degree].
Qur'an 37:62 said:Is Paradise a better accommodation or the tree of zaqqum?
Qur'an 37:63 said:Indeed, We have made it a torment for the wrongdoers.
Qur'an 37:64 said:Indeed, it is a tree issuing from the bottom of the Hellfire,
Qur'an 37:65 said:Its emerging fruit as if it was heads of the devils.
Qur'an 37:66 said:And indeed, they will eat from it and fill with it their bellies.
Qur'an 37:67 said:Then indeed, they will have after it a mixture of scalding water.
Qur'an 37:68 said:Then indeed, their return will be to the Hellfire.
But the God of Islam is supposed to be all-merciful, right? Well, apparently not to everyone:
Qur'an 2:167 said:Those who followed will say, "If only we had another turn [at worldly life] so we could disassociate ourselves from them as they have disassociated themselves from us." Thus will Allah show them their deeds as regrets upon them. And they are never to emerge from the Fire.
Qur'an 5:36 said:Indeed, those who disbelieve - if they should have all that is in the earth and the like of it with it by which to ransom themselves from the punishment of the Day of Resurrection, it will not be accepted from them, and for them is a painful punishment
Qur'an 5:37 said:They will wish to get out of the Fire, but never are they to emerge therefrom, and for them is an enduring punishment.
Qur'an 35:36 said:And for those who disbelieve will be the fire of Hell. [Death] is not decreed for them so they may die, nor will its torment be lightened for them. Thus do we recompense every ungrateful one.
Qur'an 35:37 said:And they will cry out therein, "Our Lord, remove us; we will do righteousness - other than what we were doing!" But did We not grant you life enough for whoever would remember therein to remember, and the warner had come to you? So taste [the punishment], for there is not for the wrongdoers any helper.
Sexism in the Qur'an:
Qur'an 4:34 said:Men are in charge of women by [right of] what Allah has given one over the other and what they spend [for maintenance] from their wealth. So righteous women are devoutly obedient, guarding in [the husband's] absence what Allah would have them guard. But those [wives] from whom you fear arrogance - [first] advise them; [then if they persist], forsake them in bed; and [finally], strike them. But if they obey you [once more], seek no means against them. Indeed, Allah is ever Exalted and Grand.
Qur'an 2:282 said:O you who have believed, when you contract a debt for a specified term, write it down. And let a scribe write [it] between you in justice. Let no scribe refuse to write as Allah has taught him. So let him write and let the one who has the obligation dictate. And let him fear Allah , his Lord, and not leave anything out of it. But if the one who has the obligation is of limited understanding or weak or unable to dictate himself, then let his guardian dictate in justice. And bring to witness two witnesses from among your men. And if there are not two men [available], then a man and two women from those whom you accept as witnesses - so that if one of the women errs, then the other can remind her. And let not the witnesses refuse when they are called upon. And do not be [too] weary to write it, whether it is small or large, for its [specified] term. That is more just in the sight of Allah and stronger as evidence and more likely to prevent doubt between you, except when it is an immediate transaction which you conduct among yourselves. For [then] there is no blame upon you if you do not write it. And take witnesses when you conclude a contract. Let no scribe be harmed or any witness. For if you do so, indeed, it is [grave] disobedience in you. And fear Allah . And Allah teaches you. And Allah is Knowing of all things.
Lashing prescribed as a punishment in the Qur'an:
Qur'an 24:2 said:The [unmarried] woman or [unmarried] man found guilty of sexual intercourse - lash each one of them with a hundred lashes, and do not be taken by pity for them in the religion of Allah , if you should believe in Allah and the Last Day. And let a group of the believers witness their punishment.
(Source of all Qur'anic translations above.)
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These things, at least most of them, have contexts that are clear as day. They are not from the hadith, so not even the most liberal of Qur'anist Muslims can argue that they don't exist in Islamic texts. I think that the verses about Hell and lashing alone are enough to show that Islam at its very core is neither a religion of peace nor tolerance. I even ignored the verse about cutting off thieves' hands because someone could argue that theft warrants such a punishment (which I would still disagree with).
My conclusion: Islam is not a religion of peace, and saying that it is usually means one of two things: the person who says so is either overlooking the above verses (sometimes on top of a plethora of authentic hadiths, in the case of Muslims who accept hadiths), or they see no signs of intolerance or hatred in those verses. In either case, the texts themselves don't change, further proving that the main problem of promoting intolerance and hatred lies with the religion itself, not just many of its followers.