Well, for me, being Mormon is a legitimate enough reason. I'd never vote for a cultist for any office, ever. The other reasons you listed are perfectly legit also.
When I noticed how all his sychophants on FreeRepublic we almost following a script, a pattern, something I have never seen before in politics, and I have been around, I knew there was more to it. When I dicovered the same tricks in pro LDS postion it was what our dearly departed friend Paragaon Defender called an "ah ha" moment...
Great irony, Mitt's liberalism led me to looking into his cult...