A statue of a general who fought honorably both for and against the US government is not “racist…
Dallas Dunlap

Your second point has validity, unlike your first. A monument honors something. In this case it honors what the man did, and the major focus of the monument is what the man did in defending a culture based on some people living off the unwilling labor of others- in other words a parasitic culture. The parasitism was justified by the racist notion that Whites could justifiably own and control Blacks.The distinction was based on race and so was racist.