You can preach a sermon regarding it's "intent", but it's consequences are a continuation of slavery for their foreseeable future.
Now perhaps you think the Northern congress was too stupid to see this consequence, or that Abraham Lincoln didn't consider that this might prolong slavery greatly, but I feel confident in assuring you that these men were no dummies, and fully knew the consequences of what they were supporting.
With all your clamoring about States Rights. And your claiming that “the Union fully intended to keep slavery”.
I think a Constitutional amendment designed to continue slavery and to prohibit it's own repeal is disgusting.
It is pandering of the worst sort.
Only you think it was “designed to continue slavery”. And so, you are only disgusted by your own misconceptions. It was designed to make slavery a matter of the individual States. It was designed to remove the issue from federal jurisdiction. Lincoln said he saw no problem with the proposed amendment becoming “express and ”irrevocable”. Slavery would last until the last State prohibited it. On the one hand you say it was already dying out and on the other hand you say it would live on forever under the “proposed Corwin Amendment. Must suck to be you.