Well. Yes. Things change. Remember that the bible is also the originator for the strong racism that occurred through the last millennia. It's written over and over about the superiority of the white man. Through curses people became black skinned, marry across races and death will strike. It's actually more references to racism in the bible, then it is against homosexuality. But there is not much racism going on in the church today I think, or is there? I don't know, there is at least gay suppression. Maybe because they can still get away with it?
I think you're confusing the Bible with the Book of Mormon. Mormonism is not generally accepted as a mainstream Christian belief, and conflicts with it in many areas, including the idea of racial superiority.