Blasphemous demonic nonsense! Jesus Christ is God Almighty – the Creator of all things (Rev. 18; Col. 1:16).
From Mormon publications….In Ensign,
“On first hearing, the doctrine that Lucifer and our Lord, Jesus Christ, are brothers may seem surprising to some—especially to those unacquainted with latter-day revelations. But both the scriptures and the prophets affirm that Jesus Christ and Lucifer are indeed offspring of our Heavenly Father and, therefore, spirit brothers….But as the Firstborn of the Father, Jesus was Lucifer’s older brother.” (See Col. 1:15; D&C 93:21.)
Further, according to the official LDS teacher’s manual, Gospel Principles,
“We needed a Savior to pay for our sins and teach us how to return to our Heavenly Father. Our Father said, “Whom shall I send?” (Abraham 3:27). Two of our brothers offered to help. Our oldest brother, Jesus Christ, who was then called Jehovah, said, “Here am I, send me” (Abraham 3:27)….Satan, who was called Lucifer, also came, saying, “Behold, here am I, send me, I will be thy son, and I will redeem all mankind, that one soul shall not be lost, and surely I will do it; wherefore give me thine honor”” (Moses 4:1).