The "terrible things" I've said about Mormonism and its founder are a simple matter of historical record. It can't be erased any more than you can erase the Catholic Church's history of child abuse/cover-ups, or any more than you can erase the Founder of Islam's deviant sexual practices and lust for conquest.
https://medium.com/ex-mormon-haven/mormonism-debunked-by-the-internet-yet-still-practiced-5b47cb54132d
That doesn't mean individual practitioners of these faiths, or any other faith, can't be sincere and good people. But it behooves all believers of any faith to consider the good, the bad, and the ugly in their history.
Anywho. Mixing your faith and your politics inevitably leaves you open to charges of politicizing your faith. James Madison understood this, other Founders understood this. They had a big chance to enshrine Christianity as an official religion in the U.S. Constitution, and they chose not to. They ran the totally other way - see: First Amendment, Establishment Clause.
Our Founders understood an insight that has been lost on many today - that America is and has always been diverse, pluralistic, multi-faith, incompatible with theocracy and "theodemocracy," whatever that is.