After all, we all believe now that the God we worship is NOT the same as Muslims worship. It's either Satan or non-existent god. Any who, when Mohammad was 'announced' (which I believe and backed by evidence), Satan's objective was to make people deviate away from the right way into any other way but Jesus's.
Satan was defeated when Jesus was crucified, so Satan had to pay back.
In Quran, there's a verse that denies the crucifixion of Jesus: That they said (in boast), "We killed Christ Jesus the son of Mary, the Messenger of Allah.;- but they killed him not, nor crucified him, but so it was made to appear to them, and those who differ therein are full of doubts, with no (certain) knowledge, but only conjecture to follow, for of a surety they killed him not (Women: 157).
Crucifixion is an ESSENCE in the structure of Christianity, if I can say this. If we, as Christians, deny it, we are no longer Christians. If we deny this grace, we don't deserve Jesus. And Jesus confirmed: "But he turned, and said unto Peter, Get thee behind me, Satan: thou art an offence unto me: for thou savourest not the things that be of God, but those that be of men." (Matthew 16: 23)
Unfortunately, Satan has succeeded in spreading his evil thoughts through a man used to be called once Mohammad.