Please help How did economic changes in the first half of the 19th century lead to increasing sectionalism?

Economic changes in the first half of the 19th century largely resulted from the invention of the cotton gin, and also the adoption of English textile technology. It resulted in the banishment of the Cherokee (the Trail of Tears) to open the deep south to cotton growing, and a huge increase in slave breeding and slavery to grow the cotton.

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In the United States

Sectionalism increased steadily in 1800–1850 as the North industrialized, urbanized and built prosperous factories, while the deep South concentrated on plantation agriculture based on slave labor, together with subsistence farming for poor whites who owned no slaves.

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