The problem with your definition of “bigot” is that it is overbroad, in that it is impossible for any person secure in their own beliefs to avoid the charge. Consider the Merriam Webster definition:
“a person who is obstinately or intolerantly devoted to his or her own opinions and prejudices; especially : one who regards or treats the members of a group (as a racial or ethnic group) with hatred and intolerance.”
Parse this: What is “obstinate” versus “settled?” What is “intolerant” versus “not gullible?” When is a strongly held “opinion” NOT “bigotry?” What is a “prejudice,” and how is it different from “belief?” If there is a real difference, do you think most people understand its use accurately, or do you think it is a term easily co-opted by the left to suppress the expression of Christian/conservative belief in the public square?
Put another way, if rejecting Romney based on a sense of Christian civic duty is bigotry to you, how then does the sincere Christian believe both you and Christ? He did not instruct us to hide our lights under a bushel, but to let them shine for all the world to see. Not in the sense of pride, but as a choice we make to honor God in what we do, whether public or private.
Yet you pride yourself on the privacy of your religion, but that neatly compartmentalized life is not the way Christ taught us to live. The law of God is good. It heals the sick, and gives strength to the weak. It is meant for everyone, to benefit everyone, and to lock it away in some dark corner and not live it out boldly in both our public and private lives, is to deny medicine to those who need it. It is an act of unlove. As CS Lewis would say, false humility is as damning as hubris, and is in fact just another form of hubris, and not humility at all. God gives us gifts, and he would not have done so unless he meant for us to use them. You have worked on a farm. What happens to a cow who withholds her milk, or a hen who won’t lay her eggs?
By the same token, if God has warned Christians against false prophets and other mortals aspiring to godhood (and he has so warned us), and warned us against those who replace the Christ of Scripture with some lesser being of their own invention (and he has so warned us), is it not the utmost in hubris to ignore all those warnings and voluntarily GIVE POWER to those very individuals whom God said were out to destroy our very souls? While criticizing those who DO heed his warnings as “bigots?”
Put another way, what earthly end can be so important that we should surrender our souls for it? What did Jesus say? What does it profit a man if he gains the whole world and loses his own soul? What will it profit us to be rid of Obama if we have to permanently scar our eternal souls to do it, by knowingly throwing our support behind the very type of person Jesus warned us against? Some obedience to Christ is very difficult, the little decisions day by day to be honest, loving, and good. But this one is easy. Don’t give an enemy of Christ any power over you. You will regret it, and to the extent your decision affects the rest of us, we will regret it too.