Mainstream Mormons do not practice polygamy today, but it remains part of our history and theology...In 1890...yielded to political pressure and phased out the practice...Polygamy remains a source of tension for mainstream Mormons. Mormon public figures routinely play down our polygamous history...But the LDS Church, which teaches that marriages — or “sealings” — performed in its temples are eternal, has never disavowed elements of Mormon theology...
This is handled with considerable finesse by knowledgeable Mormons. But it is always challenging to argue for changing dispensations on theological matters of primary importance.
2. Mormons aren’t Christians.
Church of Jesus Christ of Latter-day Saints around the world prayed in the name of Jesus Christ, received a bread-and-water sacrament memorializing the body and blood of Christ, and discussed Christ’s teachings in Sunday school. We Mormons view ourselves as Christians. Many Christian pastors and scholars, however, point to theological technicalities that disqualify us from the mainline tradition. Some evangelicals do not see us as Christians for reasons rooted in antiquated anti-Mormon prejudice. And Mormons distance ourselves from other Christians by claiming that our faith offers a “restoration” of doctrines lost to mainstream Christendom...
Let's handle these one at a time:
-It's interesting that the sacrament is water and bread, instead of wine (or grape juice) and bread. To the extent that Mormonism has a tendency toward works-righteousness, the picture of a "watered-down" sacrament is apropos.
-Discussing the teachings of Jesus is nice-- especially if you cover all of them-- but not a clear indication of a saving faith.
-Whether or not Mormons are routinely saved by faith in God's grace as manifested by the atoning death of Jesus, it is odd (and dishonest?) to describe the doctrinal differences as mere technicalities.
-I agree that some Evangelicals oppose Mormonism out of prejudice and ignorance. Even so, there are good reasons to ask some tough/difficult questions about Mormon doctrine, history, Scriptural revelation, etc.
-The last point is huge: If you claim to be "the only ones" or claim to have a special and important revelation, then you can't complain when you're seen as unorthodox or cult-like! (See also: Catholics and Church of Christ.)
I don't see anything particularly large and controversial about the last three:
3. Most Mormons are white, English-speaking conservatives.
4. Mormon women are second-class citizens.
5. A Mormon president would blur the line between church and state.Mormons have held local, state and federal offices in America for more than a century. Fifteen Mormons now serve in Congress, including Senate Majority Leader Harry Reid (D-Nev.) — and few seemed to worry that the LDS Church was influencing his debt-ceiling proposals.