slavery “produced in the South a genuine affection between the races,”

This is from the BS Lost Cause history. It took the South some 35-40 years to go from slavery is a necessary evil to - see bolded below

There are six main parts of the Lost Cause myth, the first and most important of which is that secession had little or nothing to do with the institution of slavery.

Second, slavery was portrayed as a positive good; submissive, happy, and faithful slaves were better off in the system of chattel slavery which offered them protection.

Second, slavery was portrayed as a positive good; submissive, happy, and faithful slaves were better off in the system of chattel slavery which offered them protection.

The third tenet states that the Confederacy was only defeated because of the Northern states’ numerical advantage in both men and resources.

Fourth, Confederate soldiers are portrayed as heroic, gallant, and saintly.

Fifth, Robert E. Lee emerged as the most sanctified figure in Lost Cause lore, especially after his death in 1870.

Finally, Southern women also steadfastly supported the cause.

battlefields.org - Lost cause definition and origins