Because it was easier to have slaves work the fields then to hire people or do it themselves.
planters
the south needed slave labor to support its manufacering economy
planters
Not all historians would agree that slavery was a "necessary" evil. In colonial America, slavery was a cheaper option was to running plantations than hiring laborers. Slaves weren't usually (if ever) paid for work, they often lived in broken-down buildings, their food was not high-quality.... etc. So I guess the shortest answer to this question would be: slavery was probably the cheapest and easiest way to run a plantation or farm.
Natural resource.
Yes planters supported slavery. They did so because slaves were free labor and they needed them to work the fields.
Southern planters believed that if slaves learned to read, it would weaken the system of slavery.
Northern workers opposed slavery; southern planters support it
Southern planters believed that the system of slavery would be weakened by abolitionist movements, slave rebellions, and economic factors such as declining profitability of slave labor.
Yeoman farmers resented rich planters because they wielded significant economic and political power. However, they still supported slavery because they believed it was essential for maintaining the social and economic hierarchy that benefited them as white landowners. Slavery provided them with a cheap labor source and allowed them to compete economically with the planters.
Their work force of slaves. They most feared that slavery would be abolished.
Southern planters opposed the Wilmot Proviso because it sought to prohibit slavery in any territory acquired from Mexico, threatening their economic interests and political power. They feared it would upset the delicate balance between free and slave states, potentially leading to the abolition of slavery in the United States.
Because slavery was the mainstay of the cotton industry.
the Southern planters thought that slavery shouldn't be ended for they needed the slaves for their crops
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Originally in the South as a source for farming, income, and other necessities for planters and farmers.
So that the poor whites could have slaves get thangs for them