Racist propaganda, not Confederate propaganda has been effective. Confederate propaganda ended with the war, The two are not the same. The Confederacy depended economically on slavery and fought to preserve it. Jim Crow rose, among other reasons, from the need for a defeated nation to explain its defeat. Those who erected the statues later, like the apologists of the Lost Cause, were certainly racist, but racism wasn’t there primary concern. Recovering their lost “honor” was.