What pro-slavery arguments were developed in the first half of the nineteenth century?

In the first half of the nineteenth century, pro-slavery arguments often centered around economic, social, and racial justifications. Advocates claimed that slavery was essential for the Southern economy, particularly for the cotton industry, which was a cornerstone of American prosperity. They also argued that enslaved people were "better off" under slavery than they would be in Africa, promoting a paternalistic view of the institution. Additionally, some defended slavery on the basis of racial superiority, asserting that white people were inherently suited to lead and civilize others.