Lee was a very great man and soldier, who unfortunately saw it as his duty to fight for a bad cause. He fulfilled his duty with honor and was respected by his foes.
Jackson was also a great soldier, but was a very strange man.
His cause was a noble as General Grant's. More sad is the fact the cause was honorable and history books were rewritten about the real issues that lead to the war. The north was not innocent either nor for that matter a friend of black people. The Civil War was an industrial war backed by industrialist on both sides with the issue of slavery in the north used as a tool for economic advantage and a catylist for justifing the war to the people.
Lincoln was not the wise and caring benevolent to blacks person history portrays him to be either. He was a segregationist who's goal was sending slaves back to their homelands after the war to those who sold them here to start with. Lincoln was an industrial puppet a man who's on finances were bleak and political career rather limited up till POTUS.
The northern states say slavery as a liability or something they could give up in exchange for limiting and stunting the upcoming industrialized southern states also who were building their infrastructure on the backs of slaves just as the north had done.
Lincoln ended states rights and started this nation on the destructive path of a strong central federal government of which the abuses are rampant that we live under today. Lincoln did no one any real favors except his backers.
The Generals of of the north & south just a few years before were in academy together and friendships established and some later renewed after the Civil War. To call the Civil War a war to free to free slaves does it and those who fought on both sides a huge injustice. Slavery would not have lasted another decade or two in the south due to automation much the same way tractors replaced mules. Mules had to be fed, sheltered, and cared for. Yea a harsh comparison on my part but the economic reality of it just as it had happened in the at the time of the Civil War developed and industrialized north. On the war kept slavery alive and well into the almost mid 1950's in the form of economical slavery both in the north and the south.