[BroJoeK]

central_va: "When President A$$ Longcolon repackaged the war after Sharpsburg as the war to free the black man, he needed the conscription act to back up his big executive order that really did nothing."

Lincoln's emancipation proclamation eventually freed millions in the Confederacy.
As for conscription: Confederates began drafting in April 1862, the Union in July 1863.
Cartoon from the time showing Confederates drafting a Southern Unionist:

[central_va]

Yes, for the South the reason for conscription are plainly obvious. He was ok with fighting and the cause but the word was getting back about the horrible conditions the average Rebel had to live under.

The North had the opposite problem, the cause "freeing the black man" wasn't worth dying for and frankly to them it sucked, but the living conditions were much, much better for them.