In a sense,...... LIncoln wanted Cash, just like George Washington did with the "Whiskey Rebellion".
The South, was growing Rich, while the North had many problems "Getting it's Act together",..... Of course, that changed once the North became an Industrialized War Economy.
Don't misunderstand me here,...... I am An American, yet,.... I Absolutely Value The "State's Rights" that "Were Constitutionally Guaranteed", which is what started "The Civil War", ... Not Slavery.
In Fact, I have some data, somewhere in My Library, where Eli Whitney's Cotton Gin, quite possibly would've quickly brought up the "Freeing the Slaves".
Matter of Fact,.... There are Documents that speak of Lincoln's wish to send the "Slaves" back to Africa, & If I am Correct, wasn't the African Nation Liberia founded for that purpose?