Slavery remained in the Deep South by other names - in prison programs with charges over nothing and eternal debt that threatened every African-American in the South right up through World War II. And that was after killing three-quarters of a million people, destroying cities, and creating hostility that exists to this day over the the Confederate flag and the racism it symbolizes, all brewing out of bitterness over a war that didn't have to happen.
One of the most important and rewarding ways in which we can serve our fellowmen is by living and sharing the principles of the gospel. We need to help those whom we seek to serve to know for themselves that God not only loves them but he is ever mindful of them and their needs. To teach our neighbors of the divinity of the gospel is a command reiterated by the Lord: 'It becometh every man who hath been warned to warn his neighbor' (D&C 88:81).