Are you getting all this just by reading what the LDS religious organization has produced?
Yes from the pagan Mormon religious tenets like their book of Mormon etc...
The things the inventor of Mormonism, Joe Smith wrote like the planet of Kolob which was the Mormon afterlife, the God hated black people, and John was still alive and lived under the North Pole...
and the immoral life he lead like the 40 wives he had all at the same time...some middle school aged...
and the things he said like the day he declared that he was greater than the LORD Jesus Christ of Christianity...
One month later God struck the heretic Joe Smith dead...
Then a guy named Brigham Young took over from Smith and was even worse...
He had 85 wives several the legal wives of other men...
and claimed that only men who had many wives would go to the Mormon afterlife where they could have 1,000 if they wanted that many and populate their own planet/afterlife...
and so on...
Well documented heresies ...