Lincoln makes it a war to end slavery then conscripts the entire Army. LOL. That IS what happened...
Your point might make some sense if the CSA had not also resorted to conscription, and quite a bit sooner than the Union.
Only in your addled brain. Out of a little over 2 million men in the United States army during the war, a mere 2% were draftees, with another 6% substitutes paid for draftees. The confederate army, on the other hand, was 25% conscripts by war's end, and the rest of the army were virtual conscripts, since the confederate congress had reneged on the terms of all the one-year enlistments, changing them to three years.