Mormonism is not Christianity.
The gospel according to jacknife? This whole old debate was on what authority any group has to define who is and who isn’t Christian. It’s an unwinnable debate unless there is one universally accepted authority and that doesn’t exist. You can state what the mainline churches define as Christianity but you can’t state that it applies to the Lord’s definition of His followers. Unless you have some revelation, you can only state man’s definition of Christianity.
Mormons are as Christian as Muslims are. They both have about the same amount of a Judea Christian base.
Mormons have a lot of really good traits; family oriented, self sufficient, etc.
But they are not Christians.