And I have done the same thing...
Even a cursory reading of the Bible says there is ONE TRUE God...see, the several passages of Isaiah 43, 44, 45, for example. Mormonism embraces MULTIPLE gods.
Hence, polytheism does NOT = Christianity. There is a certain relationship (not religious ritualism like Mormon templedom) that is a basis of eternal life:
3 Now this is eternal life: that they know you, the ONLY TRUE God, and Jesus Christ, whom you have sent. (Jesus, John 17)
Notice that Jesus says eternal life is a relationship with THE ONLY TRUE God -- not a ritual temple attachment to one of many Mormon polytheistic gods.
You would think that recognition of simple math alone would have helped you determine which religions are not "Christian."
Oh YEAH???
Where's yer evidence???