May we see your data?
Confederate constitution.
Do you mean this:
Article I Section 9(1)
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.
The citation of the Confederate constitution as the source of your argument's authority entitles your post number 119 to a minimum of half credit. For me to do less would disincentivize your search for the truth.
Certainly the Confederate constitution was right in styling the United States as one of the foreign countries. No disagreement with you there.
But that is not the entire story in the context of Brother x’s question in post 54: “What could they (southern states) do in the Confederacy that they couldn’t do in the US?”
When the U.S. constitution was adopted Virginia could legally get slaves from Maryland. When the C.S. constitution was adopted Virginia could legally get slaves from Maryland. Virginia did not need - this is just my schoolboy thinking - to join the Confederacy to get slaves from Maryland.