Okay, the confederates were against the abolishment of slavery but you have to see that in a mid-19th century context, and it is a far cry from what the Nazis did 80 years later.
OT, but I seriously doubt most in the north were in favor of ending slavery. They didn't want the Union to break, which is a different matter.
They didn't think (IMO, I wasn't there!) the black people were their equals, and surely didn't want them to come and take their jobs. Resettled in Africa ok, free in the North.. meh.
As to the southerners, they didn't want the north dictating their way of life, and the economy did depend on a big part on ancient methods, powered by slavery. Not easy to stand aside and see it just fall to ruin, I suppose.
I believe Lincoln wanted to compensate the slave owners and end it peacefully, but hotheads on both sides prevailed
On topic, pcc answer not surprising.