The Book of Mormon does not change everything the Gospel says. It is a second witness for Christ. And trust me, I know what we believe about Christ. We believe He is the Creator of this world, operating under the direction of the Father. We believe he is one of three members of the Godhead, as I said, the Only Begotten of the Father. We believe that the Father, the Son, and the Holy Ghost are in perfect harmony, and are therefore one in the sense that Christ explained in John 17 that all members of His church are one. I don’t know where you are getting your information.
Not according to Christ. He's pretty adamant about that.