Edit: also, this quote was pre-war, not post-war. He said it in 1858.

My point in pointing out postwar relations was not to assert that 1858 was postwar, but to present a time when slavery was very much abolished and public opinion was very much against slavery, yet a racist hierarchy still existed - ie presenting what Lincoln said in '58 as wholly compatible with an anti-slavery stance, even if not one we would find laudable by modern standards.