Your position is fortunately a minority position, for it is one which would relegate conservatives to minority status. Conservcatives cannot win a majority of the vote if it restricts itself to the minority of people who happen to practice the proper form of the proper religion.
Given a choice, I’d rather vote for a Christian, and further for one which has the appropriate beliefs regarding baptism, communion, and the reformation. But that hasn’t stopped me from voting for Catholics or even Methodists, or even for people who hadn’t had much time for religion at all, when the alternative was a person who, even if they had the correct religious beliefs, were wrong on the issues that matter in the political realm.