Answer: Because the cotton gin processed cotton so quickly, farmers needed increasing numbers of enslaved workers.
Step-by-step explanation:
The cotton gin made processing cotton so much more efficient that it was being produced very quickly. As a result, Southern businessmen and farmers saw an opportunity to make more money if they planted more cotton.
In other to plant more cotton, they turned more and more to slave labor and increased the number of enslaved workers that they had so that the enslaved people would farm more cotton and make higher profits for the farmers.