The Mormon church wants open borders.
Mitt is there to deliver.
Both of your comments are pretty blatant lies at worst, and bad deception at best.
There is one man that speaks for the Church, that would be Russell M. Nelson. I am confident you will never find a quote from him that will confirm your attempted deception.
The Church has nothing to gain by open borders, any more than any other Church. The only thing protecting the Church is that God given Constitution, recognizing the Rule of Law and protections enumerated in the Bill of Rights.
Mitt Romney was stupidly elected by the people of Utah. Stupidity happens despite reality, but he is one of 535, and has zero chance of influencing an open borders policy if he was that stupid to begin with.
The Church itself believes in the rule of law. I would think member in good standing, as far as I know, Mitt Romney would be a vocal proponent of the same. We shall see.