All the unnecessary shedding of blood, the destruction, the decades of oppression heaped upon the southern people, both black and white, and for what? To abolish an institution which was collasping under it own weight because of the expense of providing for the care and upkeep of the slaves? All because abolishionist were so hotheaded and headstrong in their opinion that their way was the only way to abolish slavery.
The slaver owner would have for the most part been glad to get rid of their slaves had they even been offered any reasonable alternitive.
THAT is why there were laws in the south against wholesale manumission of slaves. If you owned them you had to take care of them. You just could not turn them loose to fend for themselves and for society to take care of.