The economy of the Antebellum South was Slaved based. Huge Plantations growing rice, cotton, tobacco. The White Pantation Owners whole means of maintaining their economy needed Slaves. To be Pro-Abolition was unheard of. A whole industry was created to maintain a steady supply Slave Labor. Selling Men, Women and Children at auction.
Owners of Slaves would rent those Slaves (at a price) to other persons who needed help on their farms, female Slaves were forced to work as prostitutes in brothels. It was uncommon the babies of black prostitutes to be killed the moment they were born, if the father was White.
White Plantation owners would put their mixed race children up for sale, the concept of allowing Slaves to have a family was non-exisitent. Jumping The Broom did NOT prevent family separations. Slaves were seen as chattle.
To say Slavery was NOT a driving force that caused the Civil War is lie.