Lincoln actually advocated the return of blacks to their homeland (Africa), once the Civil War was over.
In other words, these men/women/children had been taken from their homes and land by force, placed into ships, and traded for liquor and smokes. So the best resolution would be to return these people to their homeland.
Instead, Lincoln was killed, and blacks were temporarily given positions of power, until the 1880's/1890's, when power was grabbed back by rich Southerners (when the "carpetbaggers" were kicked out). Then they were discriminated against for the next 130 years, and now, here we are.
Lincoln was a brilliant man, and genuinely cared for the people he served. Too bad, John Wilkes Booth ended his administration early.