I doubt you asked the question seriously, but I'm going to answer it, seriously.
Rewriting history makes it sound better but it doesn't make us better. Robert E. Lee was a brilliant General. Grant was disappointed that Lee did not remember the time they served together briefly as junior officers. Stonewall Jackson was a brilliant officer, as was J.E.B. Stewart, and even Nathan Forrest. Their tactics and strategy is still taught today in Military Academies.
The truth is this. There was no Civil War. A Civil War is when two or more forces are fighting for control of a Government. The Confederate States wanted independence. They wanted to form a nation of their own. Would it have worked? Doubtful. But we'll never know.
People who fight for hopeless causes are still people, and they showed great courage, and skill. The Confederates were pretty much doomed from the start, they did not have the industrial base to support a war. But they fought for their freedom.
The Irish are proud of their failed rebellion. Why not? Why not be proud of what your ancestors did? The Germans were proud of the fight they put up in World War One. The Vietnam Veterans are proud of their service. Lord knows we heard about it for months during the 2004 election. The war was lost, but that does not diminish the sacrifice, and the courage they showed.
The Japanese still honor the Kamikaze pilots, even though our modern ideals think the act of ording a suicide attack is barbaric. Those men fought with honor as they understood it. They killed a lot of our people, but they acted and were willing to sacrifice themselves in a hopeless cause.
How would you feel if we decided that the Vietnam War Memorial should be torn down? Just because they lost? Or because they were not enlightened people by our modern standards. They fought, hard, for their lives, and the lives of their buddies. They fought for freedom.
By tearing down the memorials, the statues, and the rest of it. You aren't doing anything but telling the families that their ancestors were bad people. They lost the war, isn't that enough? The Northern States won, and the Union was preserved. The dominance of the Federal Government was established once and for all.
But most of the soldiers of the south did not fight for slavery. That's the little thing that most people forget. Most of the soldiers were poor rednecks. Want to know what a redneck was? It was a white boy who was out in the fields working, and the back of their necks would get sunburned. They didn't own any slaves. They couldn't afford any. They were scraping by the best that they could, but they took up arms, and fought for their homes, and families.
The Civil War was a failed rebellion. But the people who fought, fought for their freedom as they saw it. They suffered, and died, and suffered indignities at the hands of the Northern States. The march to the sea by Sherman was a war crime by the rules of the era. But we celebrate his war crimes. We named a tank after him. The tank we used to fight the Second World War. We didn't care if the name was an insult to the Southerners, we didn't care if it bothered them. We didn't care that he had raped and pillaged his way across Georgia. We don't tell the schoolchildren that Sherman burned Atlanta to the ground. We don't tell them that their great hero of the Northern Army raped women wholesale as he marched to the sea.
We tell the kids that the South was bad because of Slavery. We don't tell the truth. We don't bother. So now we have to tear down the monuments. So what can the South be proud of in your mind? Even now everyone points and laughs and calls them ignorant and racist because they didn't vote in the same numbers for Hillary.
Later, you'll wonder why the South doesn't back you, and you'll wonder why they just won't get on the bandwagon. Tearing down their history, after burning their cities to the ground, and shitting on the memories of the fallen isn't a good way to get them on your side.