Well sure. Especially when they had used their numerical superiority to rig the laws to favor transferring money from Southern states into New York and Washington DC pockets. Take another look at this map.

See that pile of coins on New York and Boston? The bulk of that money came from the South.
*THAT* is what the war was about.
“The bulk of that money came from the South.”
How? Tariffs are in IMPORTS. There’s no way 1/3 of the population bought 3/4 of the goods.
To recap:
The reason for secession was the South’s desire to preserve slavery.
The trigger for secession was the election of Abraham Lincoln, which fed fear of the abolitionist foundation of the Republican Party.
The American Civil War began when units of the South Carolina Militia fired upon a Union fort in Charleston harbor.