His military strategy assured the Slaveocracy of defeat. Thankfully God works in mysterious ways and thus, did not allow a potentially winning strategy to be adopted by the nitwits controlling the Slaveocracy and removed its greatest advocate at Chancellorsville. Once Stonewall was in the ground the Slaveocrats no longer had even a slight chance.
V.D. your knowledge of history is clearly deficiet or you would know that the North was sick and tired of the war and dealing with the morons who ran the Slaveocracy. They were ready to discard the Radical Republicans and allow the Slavers to resume power after the war was won. This drove the RRs crazy since they could see that the DemocRATS were itching to throw away the entire effort of the war and resume the corrupt northern RAT machine-SlaveocRAT alliance which has always been so destructive to the fight for liberty and a strong nation.
However, when Slaveocrat sympathizers and agents murdered Lincoln and began a reign of terror in the South public opinion switched back to understanding that the enemies of the nation could not be allowed to regain power and impose new terror against the newly freed slaves. Thousands of blacks were murdered by the Klan and Red Shirt terrorists because they dared to walk on the same sidewalk as the terrorists not to mention attempt to exercise their freedom and new political rights.
Reconstruction under Lincoln would have been relatively mild (at least as mild as the traitors and terrorists would have allowed) since he had great fondness for the south and southerners being one himself by birth and marriage. With Malice toward None was another of his memoriable phrases (of which he created more than anyone except Shakespeare) which he believed with all his heart.
Prior to the war violence and murder of slaves was limited because of their tremendous economic value to their owners. Once their value was eliminated because of emancipation they became objects of almost universal white hatred. Often murdered by the score at times many thousands (and their white supporters and allies) were killed in the years of Reconstruction by the terrorists attempting to force them back under the rule of the Slaveocrats. Only a few of the former leaders made any attempt to treat them with humanity and allow even a small share of political power to flow to them (Wade Hampton and John Singleton Mosby were noble examples of such right thinking whites.) The Slaveocrats have only themselves to blame for the restrictions on their resuming political power.
Northern capitalists (like most of the Northerners) were not the supporters of Reconstruction who were almost all entirely motivated by moral considerations. Not even Marx maintained otherwise. Read just a tiny bit of history and you can easily see the Defenders of Slaveocracy (D.S.s)are peddling lies to the gullible and ignorant.
We'll never know if Reconstruction would have been less traumatic had Lincoln lived. It might have been, given his roots were in the South and most of his actions as candidate and president were based on political expediency.
Of course there were atrocities inflicted after the War for Southern Independence -- but not just in the ravaged Southland that was struggling mightily to survive under the crushing boot of Reconstruction.
I have probably read and absorbed as much history as you have. My ancestors helped settle Wiregrass Georgia and many were veterans of the War. Fortunately, I began to think for myself after returning to the South and started questioning the biased education I received in northern schools.
If you are so steeped in American history, perhaps you should delve into a few tomes you may not have in your library: "Southern By the Grace of God" by Michael Grissom is a good start, and for even deeper reading, "The Tragic Era" by Claude Bowers, and "A Southern View of the Invasion of the Southern States and War of 1861-65" by Capt. S.A. Ashe.
I took my FR name, Varina Davis, from one of the most courageous-- if unsung--women in history.