So when Spencer W Kimball confirmed that the darkies were turning into lighties through righteousness, just like in the Book of Mormon, literally before his very eyes, you are saying he lied?
No, he was speaking of intermarriage and cultural interchange that would occur as the gospel spread in the Latter Days. I know that intermarriage and cultural blending, syncretism, and heterodoxy of this kind is anathema to the present doctrine of multiculturalism, but it is what the Church appers to have long taught.
And when the youth of today are counseled not to marry a partner of a different race that's not apartheid style thinking?
The last time I heard that counsel given was in the late seventies. It was, and still is, good council, under certain circumstances and for a number of potential reasons having nothing to do with race (and it doesn't, by the way), but not for the same reasons it was once taught in a past cultural setting. Culture and even subcultural background can be salient features of a decision to marry, as one never only marries a spouse, but that spouse's family (and vice versa).