Whether the text is the Bible, the Quran, or any other text - religious or not - one of the duties of the reader is to discern what ideas are being conveyed and how. Often times it is clear that one or another literary device is being employed, such as parable, allegory, analogy etc. Such is the case with a saying such as "watch out for false prophets, for they come to you in sheep's clothing but inwardly are ferocious wolves". In such a statement, no one expects that false prophets will literally wear sheep's skin.
There are other times when only the context of the whole passage makes it clear that a person's speech is not to be taken at face value. Such an example would be 1Kings 22:15 - where Micaiah is mocking Ahab's "prophets" by saying the same thing they are. The immediate surrounding passages and the whole chapter make it clear that that is exactly what he is doing.
Taking all the passages I can think of - including those I have listed above - it seems very clear to me that the death and resurrection of Yeshua as recorded in Matthew and John (and Luke and Mark which I reject as containing errors - but even in them) - is not a literary device to be interpreted at our whim, but meant to portray a real historical event. This is clear whether or not one actually believes the story - the intent of the authors, the various words of the characters all point to it being a historical event and not simply a literary device.
The verse quoted from the Quran sweeps all this away in one statement. It says Christ was not crucified, not killed and only a likeness put on *another* man. It is simply not possible to hold this as true and also hold true the idea being conveyed given all that is said in the Gospels.
Literal interpretation, or allegory, parable, analogy or any other literary device should be judged on a case by case basis. Saying nothing is literal, or everything is literal, (and this applies to a whole range of writings going beyond religious) is to apply a standard without context and without reason.
My open mindedness and bias or lack of it has limits, but thank you for the complement - although I don't think that is the heart of the issue, as described.
Cheers.