Indeed Jesus said that he and the Father are one. Muslims argue that he meant in mission and not in person. That is because he also said that he of his own self can do NOTHING. He by the finger of God cast out demons. The second statement is clearer than the first in establishing that Jesus is no equal to God.
Every person of God tells their followers to follow them so Jesus doing so is not unique. Plus the stories in the Bible are not coherent. Muhammad's message on the other hand is so clear that it is the number one reason given by converted Muslims for why they became a Muslim.