I'd be more concerned about Gods narrow definition of Christianity.
The term [Fundamentalism] was born when conservative Protestants in early-20th-century America committed themselves to defend the five "fundamentals" of their faith -- the inerrancy of the Bible, virgin birth and deity of Jesus, doctrine of atonement, bodily resurrection of Jesus, and His imminent return.
-- from the thread The many forms of fundamentalism
Fundamentalist: A term created during the turn-of-the-20th-century Protestant church splits to define those who held to the fundamentals of Christianitythe inerrancy of the Bible, the virgin birth of Jesus and his literal resurrection from the dead. The term is now considered pejorative. (Wheaton College philosophy professor Alvin Plantinga famously observed, The full meaning of the term can be given by something like stupid sumbitch whose theological opinions are considerably to the right of mine.)
-- from the thread New Kids In The Flock
Oh, you mean the SSPX, sede vacantist and "RadTrad" crowd that's ever so much more Catholic than the Pope? To the point that some of them don't believe there's been a legitimate Pope since 1958?
Yep, they're pretty wild, alright.
Do you think that the Catholic denomination’s leadership is more accepting of Mormonism?
You mean like,
Pope Leo XIII, Satis Cognitum (# 9): "The practice of the Church has always been the same, as is shown by the unanimous teaching of the Fathers, who were wont to hold as outside Catholic communion, and alien to the Church, whoever would recede in the least degree from any point of doctrine proposed by her authoritative Magisterium." Satis Cognitum (# 9): June 29, 1896: http://www.vatican.va/holy_father/leo_xiii/encyclicals/documents/hf_l-xiii_enc_29061896_satis-cognitum_en.html Pope Boniface VIII, Unam Sanctam: