It is impossible that Jesus Christ would create a Church, endow it with an inerrant Scripture, and then leave that Church to disintegrate into "apostasy" barely a minute after the Last Apostle drew his last breath.
Amusing that this is precisely what Joseph Smith claimed and that most evangelicals hate Mormonism as much as they do Catholicism. IMHO, that is because Mormonism offers a reductio ad absurdum argument against sectarian evangelicalism.