“All Are Alike unto God”

he inviteth them all to come unto him and partake of his goodness; and he denieth none that come unto him, black and white, bond and free, male and female; and he remembereth the heathen; and all are alike unto God, both Jew and Gentile. (2 Nephi 26:33)

"I don't know a single Mormon who is alt-right, but if there are any, modern-day prophets have clearly spoken out against any kind of racial prejudice." -Geoff Biddulph
See "Op-ed: Why Mormons who are alt-right are not right", Russell Stevenson, Deseret News, 14 Aug 2017

"Church Issues Statement on Situation in Charlottesville, Virginia" Mormon Newsroom, 13 Aug 2017

"I remind you that no man who makes disparaging remarks concerning those of another race can consider himself a true disciple of Christ. Nor can he consider himself to be in harmony with the teachings of the Church of Christ." ("The Need for Greater Kindness",  Gordon B. Hinckley, Apr 2006)

“We do wish that there would be no racial prejudice. … Racial prejudice is of the devil. … There is no place for it in the gospel of Jesus Christ”  ("The Teachings of Spencer W. Kimball", ed. Edward L. Kimball [1982], 236–37)

“No More Strangers”, Alexander B. Morrison, Sep 2000, Ensign
Racism is an offense against God and a tool in the devil’s hands.

“It has been called to our attention that there are some among the various pro-white and white supremacy communities who assert that the Church is neutral toward or in support of their views. Nothing could be further from the truth," Tuesday's church statement begins. 

"In the New Testament, Jesus said, 'Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment. And the second is like unto it, Thou shalt love thy neighbour as thyself.' (Matthew 22:37-39) The Book of Mormon teaches 'all are alike unto God' (2 Nephi 26:33). 

"White supremacist attitudes are morally wrong and sinful, and we condemn them. Church members who promote or pursue a 'white culture' or white supremacy agenda are not in harmony with the teachings of the Church.” ("LDS Church issues statement condemning 'white supremacist attitudes", Scott Taylor, Deseret News, 15 Aug 2017)