Mormonism

If Joseph was prophet, seer, and revelator, how could he have gotten the Book of Abraham (published as the “Pearl of Great Price”) so wrong? He claimed it was written by Abraham’s own hand. Modern scholars and Egyptologists (some hired by the church) have discovered that the papyrus is nothing more than a pagan funerary document on preparing the dead for the afterlife. And, if the church is headed by real “prophets, seers, and revelators,” why did it have to hire scholars to translate the papyri in the first place?
If Joseph Smith was a true prophet, why did many of his specific prophecies not come true? The bible teaches that one false prophecy makes a false prophet.
Why did “prophet” Brigham Young say by way of revelation that black men were never to hold the priesthood until after the Millennium because of their spiritual unworthiness and “prophet” Spencer W. Kimball give them the priesthood in 1978? Did God change His mind (again)? Did Joseph Smith not know this “decree of heaven” when he ordained a black man to the priesthood?
Why did Joseph partially “translate” the metal plates found in Kinderhook, Illinois proclaiming them to be the ancient writings of a Lamanite, when in actuality the plates were a hoax, made and buried locally by men seeking to expose Joseph Smith as a fraud?
Why was the church buying forged documents purported to be written by early church leaders from Mark Hoffman in the early 1980’s? This alleged church history proved to be embarrassing to the church. How come Gordon B. Hinckley didn’t know as an “agent for God” that the documents were fraudulent