Why did the north oppose war with Mexico?

There were several reasons why the North opposed the war with Mexico:

- Economic concerns: The North was largely engaged in manufacturing and trade, and many merchants and industrialists feared that war with Mexico would disrupt these activities and lead to economic losses.

- Political ideology: Many Northerners were opposed to the expansion of slavery into new territories, and they feared that the acquisition of Mexican territory would only serve to increase the power of the slave states.

- Cultural differences: There were significant cultural differences between the North and the South, and many Northerners viewed the Mexicans as inferior and uncivilized.

- Wariness of expansion: Some Northerners were opposed to the idea of annexing new territories because they feared that it would strain the resources of the United States and make it more difficult to govern effectively.

- Manifest Destiny: Some Northerners were opposed to the war because it would conflict with the Manifest Destiny and make it more difficult for the United States to expand to the Pacific Ocean.

These factors combined to create a strong opposition to the war with Mexico in the North.