https://www.wbur.org/cognoscenti/2013/02/18/the-other-13th-richard-albert
https://www.lib.niu.edu/2006/ih060934.html
Lincoln did not campaign for or seek the presidency to eliminate slavery, but to oppose its extension. That was the Republican position. The Souths rejecting of all compromise, violation of their grandfathers bond, and firing upon Ft. Sumter ignited it.
As war progressed, Lincoln came to see it in a terrible redemptive reckoning. From his second inaugural:
Fondly do we hopefervently do we praythat this mighty scourge of war may speedily pass away. Yet, if God wills that it continue, until all the wealth piled by the bond-mans two hundred and fifty years of unrequited toil shall be sunk, and until every drop of blood drawn with the lash, shall be paid by another drawn with the sword, as was said three thousand years ago, so still it must be said the judgments of the Lord, are true and righteous altogether.
Sadly we are in need of a similar redemption. The regressive, racist fascists will not accept any compromise. Like the unwise South, they insist on expansion and nothing else.
A terrible price must be paid, or their tyranny endured. No other choice.