Well, so did the US constitution - at least until the emancipation proclamation after Antietem.
Curiously, the Confederate constitution outlawed slave trafficking.
False.
"Curiously, the Confederate constitution outlawed slave trafficking."
No need to buy any new imported ones when the domestic population was self-supporting.
Actually it did not. Article 1, section 9: "The importation of negroes of the African race, from any foreign country, other than the slaveholding States or Territories of the United States of America, is hereby forbidden; and Congress is required to pass such laws as shall effectually prevent the same."
It, in fact, specifically protected slave imports from one foreign country. Anyone who thinks that an independent confederacy wouldn't have resumed importing slaves from other sources is fooling themselves.