I feel sad that the following will go right over your head, but I do it for the folks reading along on this thread.
It is precisely that Milt is a Mormon high priest in a cult that the media can exploit his religious beliefs to help little barry bastard. Therefore your comment that, “Our gripe with Romney should be about his lack of conservative credentials, not because he is a Mormon” is naive at best.
And there it is right there. You just made my point. You believe "Milt is a Mormon high priest in a cult". I, and the vast majority of people, can accept "Milt" was a Bishop in a Mormon Church that has been established and reasonably accepted by the public for a very long time now. I do not think his religion will end up being that big a deal. The left with try simply because they'll throw any chuck of mud they find and hope something sticks, but I don't think that tactic will work.
Some of the posters here, and perhaps that includes you, just don't like Mormons - fine, I will say just don't like Mormonism. That IS really what they/you are getting hung up on. And from the best I can tell what this is really all about is that Mormons dare call themselves Christians. For some evangelicals it does seem to be a thorn in their side that engenders a lot of loathing. Fortunately, for the vast majority of conservatives and Republicans, this election will be far more about beating Hussein than it will be about caring a whole lot about whether Romney is Mormon.