In three bullet points or less put this in other words: 1. Many Southerners justified slavery for economical reasons. Agriculture was the main factor of the Southern economy, and Southerners argued that slavery supported this economy and the United States in growing. 

2. Southerners did not want slave rebellions because they wanted to remain in control of the enslaved population. Slave rebellions also taught other slaves to stand up against their captors, which was a social implication against Southerners. Economically, Southerners hated slave rebellions because they disrupted their business of agriculture and slavery. 

3. On the plantations, slaves developed families of their own and communities of their own. However, since they were not free they had no rights and were not seen as human. These legal barriers tore apart the relationships of slave families and communities.