bigotry, n.
The quality or condition of a bigot; obstinate or unreasonable attachment to a belief, practice, faction, etc.; intolerance, prejudice.
So yes, a Mormon who will not vote for a non-Mormon is a bigot, much like the opposite.
But don't tell me that the above basis is equal to failing to vote for a candidate based upon his stand upon actual issues. It's absurd.
Well, your theory only holds if the belief is irrational. Am I to assume you do not see a Christian’s faith in the commands of Christ as rational?