Final answer:
Slavery was not accepted in the U.S. by many people due to beliefs in equality, the abolitionist movement, and economic factors.
Step-by-step explanation:
Slavery was not accepted in the U.S. by many people for various reasons. One reason was the belief in the inherent dignity and equality of all individuals, which contradicted the idea of owning another human being. Another reason was the growing abolitionist movement, which gained momentum in the 19th century and advocated for the end of slavery. Additionally, economic factors also played a role, as the industrialization and urbanization of the Northern states led to a shift in labor practices away from agriculture and towards manufacturing.
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