They should burn down all the traitors houses. That confederate flag is a symbol of treason, hate, traitors, and racist -------- who fought to keep slavery legal.
Basically he's saying that God ordered the black slaves and to move them out from Africa to be subjugated as a necessary evil.
"In this enlightened age, there are few I believe, but what will acknowledge, that slavery as an institution, is a moral & political evil in any Country. It is useless to expatiate on its disadvantages. I think it however a greater evil to the white man than to the black race, & while my feelings are strongly enlisted in behalf of the latter, my sympathies are more strong for the former. The blacks are immeasurably better off here than in Africa, morally, socially & physically. The painful discipline they are undergoing, is necessary for their instruction as a race, & I hope will prepare & lead them to better things. How long their subjugation may be necessary is known & ordered by a wise God." - Robert E. Lee