The reality of Jesus crucifixion

The Christian literature and scripture, in and of itself, provide several reasons to accept the Qur'anic statement that it was not Jesus, the prophet of Allah", who was crucified. Rather, it is to demonstrate that the early Christians were quite confused and uncertain about what actually happened during the crucifixion event.
Christians try to defend crucifixion by saying that Jesus Christ willingly suffered death to pay the price for sins of men. But according to Christian history and book this is not true for many reasons:
Firstly, We read in the Bible that he did not wish to die on the cross, for when he knew that his enemies were plotting against his life, he asked his disciples to keep watch over him to protect him from his enemies and he prayed to god.
“Abba, Father, all things are possible unto Thee; take away this cup from me; nevertheless not what I will, but what Thou wilt” (Mark 14:36)
Secondly, we fail to see how suffering and death of one man can wipe out the sins of others. It sounds something like the physician breaking his own head to cure the headache of his patients. The idea of substitutionary or vicarious sacrifice is illogical, meaningless and unjust.
Thirdly, the idea that shedding of blood is necessary to appease the Wrath of God has come into Christianity from the primitive man’s image of God as an all-powerful demon. We see no connection at all between sin and blood. What is necessary to wash away sin is not blood but repentance, development for greater sympathy for mankind and carry out the Will of God as revealed to us through the prophets.
The Christian scheme of salvation is not only morally and rationally unsound, but also has no support of the words of Jesus. Jesus had come to rescue men from sin by his teaching and the example of his life, and not by deliberately dying for them on the cross and offering his blood as a propitiaytiation for their sins. When a young man came and asked him”Good Master, what shall I do that I may inherit eternal life?” he mentioned nothing about his atoning sacrifice and redeeming power of his blood. His reply was the same as that of every other prophet. For he said:
“Why callest thou me good? There is none good but one that is, God; but if thou wilt enter into life, keep the commandments.” (Matthew 19:17)
“Keep the commandments.” That, according to Jesus, was the way to eternal life salvation could be gained by believing in God, eschewing evil and doing good, and not by accepting Jesus as the redeemer and believing in his blood atonement.
The dogma of the Atonement is unsound, for:
1- Man is not born in sin.
2- God does not require a price to forgive the sinner.
3- The ides of substitutionary or vicarious sacrifice is unjust and cruel.
Neither is the sin of Adam inherited by the children of Adam, nor did it require the suffering and death of Jesus Christ to be forgiven. The truth is that Jesus did not die on the cross at all. The doctrine of the Atonement is a denial of the justice and mercy of God.
Islam rejects this dogma. It declares that the forgiveness of sins can be obtained by the Grace of God and our own sincere and persistent efforts to fight against evil and do goodness.
“Whosoever goeth right, it is only for the good of his own soul that he goeth right, and whosoever erreth, erreth only to its hurt. No laden soul can bear another’s load”
(Quran, Surah: al-Asraa 17:15)