And BTW I do know about Mormonism. I lived next to Mormons, I was proselytized by Mormons. I have read literature by Mormons and anti-Mormons. I have seen documentaries by Mormons, anti-Mormons, and supposedly unbiased reporters.
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So, IOW, you know NOTHING about Mormonism. Got it.
I used to be Mormon, I lived it.
What the LDS puts out, what the LDS missionaries say isn’t what the LDS really believe or is sugar coated for PR. The ‘antiMormon’ stuff can be good or bad, depending on who did it, for example, the stuff from Ed Decker is no where near as reliable as the stuff from UTLM.ORG (Tanners).
Christians believe they are the one true faith, but we don’t believe our denomination is the oNLY true one (with a few execptions like KJV only Baptists). We accept other denominations as being Christian. You seem to be stuck on an erroneous belief of Christians calling other Christians non Christian and that isn’t the case.
Other churches accept each other’s baptism, for example, Methodists, Catholic, Orthodox and Evangelicals accepts each other’s baptism and/or confirmation for church membership and conversion. However, NONE of them accept Mormon baptism. Christians of all denominations agree on the important things, like the person work and nature of Christ however the LDS do not. Mormons reject the Bible except for a few poof texts (other churches do not). And since Vatican II, Catholics no longer consider Protestants to be outside the faith, however they do still exclude the LDS.
Have you ever visited a creationism vs. evolution thread on FR? A Free Will / Predestination thread?