There has been a major resurgence in pro-Confederacy rhetoric on social media lately. The public’s increased awareness of the fact that a white supremacy based sub-culture is alive and well in America has produced a backlash against the symbols of the Confederacy that dot the Southern United States.
Heritage not Hate has become a rallying cry that completely misses the point. Honoring your individual ancestors is a personal matter. Using public lands and money to celebrate their rebellion and what it represented is an entirely different matter.
If the Confederacy was built on a foundation of love, it was a love for the status quo at a time when men and women could be property and the wealth resulting from the use of their minds and bodies could be collected by the people enslaving them.
The various states that attempted to secede from the Union each individually codified and publicized their reasons for forming a new nation and a major theme that ran across most of them was the passionate desire to keep the institution of slavery safe from limits that might be imposed by the newly elected Republican President and keep the institution growing into new lands to the west. (see: The Declaration of Causes of Seceding States)
There are other reasons that states and individuals supported secession but those were in addition to the preservation of slavery, not instead of it.
Some of the people in charge of elementary and high school history curriculum have done a great disservice to the nation. For almost a century now we have worked hard to insulate students from the harsh realities of nineteenth century America. As a result, we now have adults walking around who think that the causes for the war are unknown and only exist in a murky realm of debatable opinion. We know the facts, but the facts are rarely presented clearly alongside the supporting documentation that removes a lot of that murkiness.
The same Internet that helps draw these pro-Confederacy activists together provide easy access to primary source materials that let us fully understand what has happening before and during the war if we just open our eyes.