That's not it.
The Christian belief is that it was an aspect of God who incarnated on earth, and not merely a prophet, as Islam believes. Now both are these beliefs relating to the nature and characteristics of God....yet they they contradict each other.
So the options are, either one is wrong and the other is right, or both are wrong. Both cannot be right because each version describes a different God.
You can't have it both way, and that's without considering numerous other versions of God.
If some are wrong, as wrong they must be because they contradict, all of them can be wrong because the sheer diversity of contradictory beliefs demonstrates that these faith based ideas are products of the human mind.
There will always be people striving to divide what is right, but if they follow their book and heart then they will know that to do so is wrong.
You have no way of knowing what is in their hearts, or that are indeed 'striving to divide what is right' rather than doing exactly as you are doing, expressing what you believe is right.
You're stretching again;
That is funny.
though some Christians hold that Christ is literally equal to GOD and Islam believes that Christ was the perfect messenger of GOD doesn't mean the two can't both be right on most points such as the will of GOD and the direction of man by gods will.
But they aren't right on most points, except the generalities of what a god is thought to be, all powerful, immortal, etc, which describes the gods of most religions from Zeus to Odin to Yahweh, Brahma, Allah and so on, yet it's quite clear that not only are these not versions of one God, but constructs of the human minds that imagined them and worshipped them for personal gain in some form, solace, position, social control, an explanation for the existence of the world......
Some of the errors of Islamic faith in relation to Christianity,
for example;
''According to Muslim biographer Ibn Ishaq in his work, Sirat Rasulullah, a Christian deputation from Najran came to debate Muhammad on the person of Jesus. Accordingly, these Christians allegedly believed that Jesus, "is God; and He is the son of God; and He is the third Person of the Trinity, which is the doctrine of Christianity." (Alfred Guilliame trans., The Life of Muhammad [Oxford University Press, Karachi], p. 271)
He goes on to say, "They argue that he is the third of three in that God says: We have done, We have commanded, We have created and We have decreed, and they say, If He were one He would have said I have done, I have created, and so on, but He is He and Jesus and Mary. Concerning all these assertions the Quran came down." (Ibid., pp. 271-272)
The errors in the Quranic teaching on what Christians believe becomes apparent to anyone familiar with the basics of Christian doctrine. Firstly, Christians have never taken Mary as a goddess alongside God. Secondly, Christians have never said God is three or the third of three which is tritheism, three separate gods forming a unity; as opposed to Trinity, ONE God who exists in Three distinct yet inseparable Persons: Father, Son, and Holy Spirit.
Thirdly, Christianity has never taught as part of its doctrine that Jesus is the third Person of the Trinity. Rather, he is the Second Person, with the Holy Spirit being the third Person of the Godhead. Matthew 28:19
Fourthly, Muslims believe that Allah of the Quran is the same as God the Father of the Holy Bible since they do not believe in God the Son, Jesus Christ, nor in God the Holy Spirit who to Muslims is the angel Gabriel. This again causes a problem since if Allah is indeed the same Person as God the Father then the Quran is wrong in saying that Christians believe that the Father is the third of three. Christians teach that the Father is the First Person of the One True Godhead, not the third deity of three gods.
And finally, Christians do not believe that Allah is the Messiah, or that God is the Messiah since this implies that Jesus is the entire Godhead, which would be modalism. The correct and biblical statement is that Jesus is God, since this suggests that although Jesus is fully God by nature he is not the only Person who shares the essence of Deity perfectly. The Bible also teaches that both the Father and the Holy Spirit are fully God.''