Understood, but you still have not answered what role—if any—his personal faith plays in his example to the nation. Did millions of people become Methodists because George W. Bush is a Methodist? I fail to see the grave danger to the country from having as Mormon as vice president or even as president.
There is simply no way to tell how many people were influenced in part to accept Christianity because Bush is a Christian. But I believe that it happens.
Perhaps Romney becoming President would discourage people from becoming Mormons and cause a mass exodus from the Mormon church. And if I knew that with certainty, I might vote for him despite his liberalism.