There were many justifications for owning slaves including religious reasons revolving around selective reading of biblical passages. Economic justification related to the need for a tractable work force in the South. Social reasons related to the alleged inferiority of African Americans.
overextended the power of the federal government. (2) forced the federal government into heavy debt. (3) ignored the rights of minority groups and women. (4) failed to solve the problems for which they were intended.