Is the Protestant Doctrine of Salvation Incommensurate with the Mormon View?

I am always harping about how Mormons are allowed to believe a lot more things than traditional Christians and still be Mormons. I don’t think the Mormons that run the Church care about truth per se, but its usefulness in the cause, and it is eminently useful not to engage in debates about what you have to believe to be LDS.  I think most sane people believe this— it is generally not wise to declare how stupid you think others are within their earshot, and most people are apt to say stupid things when they are cutting down another cause.

From my point of view, this reality presents those who make massive truth claims, such as Evangelical Protestants, an interesting test: Here is a group of people who ostensibly believe a lot of the same things you Evangelicals believe; they are going to hell, forever, because of their confusion; it seems that the power of your message should be able to convert these people.  For me, it’s as if the Mormons are laying ready on Mount Carmel and Evangelicals can’t make so much as a spark to ignite what is dry kindling. I thought a good place to put my pet theory to the test is to determine whether a Mormon can fully believe the Protestant view of Salvation and remain LDS.  Is there some logical necessity of rejecting the message of the Restoration?  If they are not now, Mormons even become saved Christians and remain in the Church?

The question seems important. If the answer is “no,” Protestants should joyfully want Mormons to believe in their view of the Gospel whether or not the Mormons remain faithful to their LDS covenants or attend LDS church or believe the Book of Mormon is the word of God, or even continue to gather converts.  The entire approach to LDS missionary work would not be to show them where they are wrong theologically (which is extremely boring), but to teach them the truth in spirit and in power like Paul advocated (manifestly less boring). I recognize that many Mormons do not, and never will, understand or believe the theology behind the Evangelical view of salvation from original sin. But most Mormons are new Mormons without set theologies, and LDS Missionary efforts require a wide tolerance for strange beliefs. (I learned this acutely while eating dinner with a Jet Propulsion Laboratory physicist and my missionary companion, who was convinced that the earth was hollow.)