What was the main reason the South opposed the Tariff of Abominations?

The main reason the South opposed the Tariff of Abominations was because it disproportionately affected their economy, which was primarily based on agriculture and relied heavily on exports. The high tariff rates imposed by the Tariff of Abominations significantly increased the cost of imported goods that the South relied on, including manufactured goods and raw materials. This had a negative impact on Southern farmers and planters, as it made it more difficult and expensive for them to sell their cotton and other agricultural products to foreign markets. Additionally, the South argued that the tariff was unconstitutional and favored Northern industrial interests at the expense of Southern agricultural interests. Overall, the opposition to the Tariff of Abominations deepened the growing divide between the industrializing North and the agrarian South, contributing to the underlying tensions that eventually led to the American Civil War.

put in short terms

The South opposed the Tariff of Abominations because it hurt their agricultural economy and made it more costly for them to export their goods. They felt it favored Northern industrial interests and was unconstitutional.