Slavery never ended.

Ever see those stupid laws like “don’t ride a horse on a Sunday?” Or look at when “vagrancy” laws were passed, or differences in sentencing between crack and coke.

Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.

Look at prison rates and racial backgrounds in the south. Look at how felonies are used to disenfranchise. Look at the war on drugs.