They are not contradictory.
Islam is as opposite to Christianity, as Muhammad was the opposite of Jesus.
JESUS OR MUHAMMAD
I see Jesus as Messiah but even more importantly as the second Adam. If the cross is removed .....
But that's the whole subject of the Gospel. Yet to follow Muhammad you must reject the crucifixion of Christ and thus the blood He shed to save you from your sins, and deny and blaspheme the Son of God, as articles of your faith in Muhammad alone.
2Jo 1:9 Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God.
He that abideth in the doctrine of Christ, he hath both the Father and the Son.
1Jo 4:15 Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.
But Satan through his "messenger" suggests that to confess that Jesus is the Son of God, he would have committed the single most "heinous" and only unforgivable sin in Muhammadanism.
UNFORGIVABLE SIN OF SHIRK
The result?
John 3:36 He that believeth on the Son hath everlasting life: and
he that believeth not the Son shall not see life; but the wrath of God abideth on him.
..... and we concentrate on his Adamic nature then he is the way the truth and the life. The first fruits of creation. Its that I saw in the scriptures he was adopted by God at his baptism. "Today you are my son.". So I don't see the cross as important as his Adamic being.
There's good reason you can't see the importance of the cross - of
the whole subject of the Gospel:
1Co 2:14 But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.
Sent to us. The children of Adam thus unifing all mankind and faiths under Adam.