"The Evangelicals are the base of the Republican party. I spent a few years working alongside people from other religions on social issues. I was amazed at how visceral the antipathy is toward Mormons among some groups, including those I worked with."
And this is my ONLY point here.
People can argue about right and wrong and theology all day long, when it comes down to the fact that Romney won't fly for this reason.
I would vote for Romney if he ended up being the Republican nominee. But I don't welcome his candidacy, because I don't think he can win, and I think his candidacy will invite attacks on my church. Case in point, this thread. And freepers are politically aligned with Mormons.
Interestingly, our Mormon governer here in Utah has already gotten on McCain's bandwagon.