Muhammad told the world that God is God and the Messiah is nothing more nor less than God’s servant. But Muhammad unequivocally identified Jesus as the Messiah. Thus, Muhammad contradicted Judaism in its absolute rejection of the "Messiah, Jesus" (Women 4:171). And he contradicted Christianity, which, by Muhammad’s time, had officially identified Jesus as the Second and coequal Member of a Holy Trinity of Gods.
Nowadays, however, Muhammad’s confirmation of Jesus as the Messiah isn’t an Islamic teaching Muslims religiously convey to the world. In fact, the most publicly heard Muslims don’t even mention it! Evidently, they consider it an insignificant subject compared to the Koran’s directive to reward evil “…with like evil” (Counsel 42:40) — the teaching they practice with such devotion, outsiders could perceive it to be the primary message of Islam!