Non-polygamists are Damned to Hell

Journal of Discourses 20:37; “I understand the law of celestial marriage to mean that every man in this Church, who has the ability to obey and practice it in righteousness and will not, shall be damned, I say I understand it to mean this and nothing less, and I testify in the name of Jesus that it does mean that.” – Joseph F. Smith, Salt Lake City, July 7, 1878

Matthew 19:5; “And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh?”

Essentially this would mean that every single member of the Church today is going to hell, including the prophets, apostles, every quorum, bishop, elder; everyone. 

Unless of course you’re practicing polygamy without publicly announcing it which would mean you’re breaking the laws of the land and you’re in violation of the 12th  Article of Faith which says “We believe in being subject to kings, presidents, rulers, and magistrates, in obeying, honoring, and sustaining the law”.