...lets the CSA exist with slavery intact. Got it.
If you attempt to judge the people of the mid-nineteenth century by 21st century standards then you are going to get a very distorted view of history. Lincoln had racist views, Grand Wizard KKK racist views.
Just like the Union. Have you got that? Do you "get it" that the UNION KEPT SLAVERY LONGER THAN THE SOUTH?
Stop talking to us about how immoral it is until you recognize that it was not so immoral that they should get rid of it in Maryland or Kentucky or Missouri or Delaware.
If you hate slavery so much, you should thank the South, because if they hadn't seceded, Slavery would have continued another 50 years or so.
Without the economic war against the South, they never would have had the excuse to evaporate 4.5 billion dollars worth of Southern capital under the pretense of morality.