> But as Levine points out, "the opposition of slave owners was ferocious--even though they were facing defeat and the end of slavery, they would not face those realities. They would not give up their slaves, even to save the Confederate cause itself."
It doesn't sound like it was a very well supported policy in the South. How can this be proof of anything it it was never carried out (except for a few random individuals)?
The reason it was not carried out was because Jefferson Davis was a very stubborn man, who did not do a very good job of managing the war.