Because it was the mainstay of the cotton industry, which represented half the exports of the USA.
South wanted to keep slaves, north didn't want slavery to continue
Briefly put, most Southerners wanted to continue the right to own slaves and most Northerners did not like the practice and did not want to see it extended to new states that came into the union. A fairly large number of Northerners were strongly against slavery and wanted to abolish it throughout the country as soon as possible. Some Southerners had objections to slavery but respected the right of others to keep their slaves.
The southerners wanted slavery to end but northerners didn't want that
Northerners did not want the slaves to worry about unemployment like factory workers from the North.
Most Northerner didn't care for slavery. That is not to say they didn't want it abolished, it just did not affect their life.
South wanted to keep slaves, north didn't want slavery to continue
Briefly put, most Southerners wanted to continue the right to own slaves and most Northerners did not like the practice and did not want to see it extended to new states that came into the union. A fairly large number of Northerners were strongly against slavery and wanted to abolish it throughout the country as soon as possible. Some Southerners had objections to slavery but respected the right of others to keep their slaves.
The southerners wanted slavery to end but northerners didn't want that
Northerners did not want the slaves to worry about unemployment like factory workers from the North.
I want an answer
Northerners opposed the Fugitive Slacve law because they were against slavery, so they didn't want to help capture runaway slaves because they thought that if they had got away, then leave them alone. Besides it would make slavery worse in a way.
Most Northerner didn't care for slavery. That is not to say they didn't want it abolished, it just did not affect their life.
Because Texas allowed slavery, Northerners were opposed to allowing another slave state into the Union.
Because Texas allowed slavery, Northerners were opposed to allowing another slave state into the Union.
Slavery promoted sectionalism because the south was in favor of slavery and the north was opposed to it. The south didn't want slavery to end. With northerners opposing slavery, disagreements started to rise, which resulted in the south attempting to succeed and the Civil War breaking out.
because they want money and power they dont care
northerners opposed because they said the annexation would bring more power to the south and spread slavery which they didnt want.