The Confederacy, led by Robert E. Lee and Jefferson Davis, rebelled against the government of the United States. While it’s clear at this point that hypocrisy and moral integrity on the right-wing means absolutely nothing (how could anyone who calls themselves a Christian stand behind an admitted sexual predator and known thief, liar, and blasphemer like Donald Trump?), the cognitive dissonance between calling yourself an American patriot while celebrating the Confederacy truly boggles the mind.
As the story goes, Lucifer rebelled against his Father and was cast out of Heaven for his betrayal. The Confederacy similarly rebelled against their Father but were not cast away; they were brought back into the fold after their own betrayal.
These statues were erected long after the Civil War, as part of Jim Crow and the institution of a new regime of racial subjugation by whites against blacks through the justice, electoral, and economic systems of the United States. They have nothing to do with “history” or “heritage” and everything to do with the modern-day mechanisms of racial socioeconomic repression.