“. . . thus referring back to the famous speech by Confederate VP Alexander Stephens, where Stephens goes to great lengths to explain how the new Confederate constitution is vastly superior to the old US Constitution . . .”
That is an interesting claim by you.
First things first: in which post on this thread have I referred to the Alexander Stephens speech?
As I carefully explained the first time (how many times will you ignore it?), your claim that slavery is the "cornerstone" of the US Constitution, refers back to Alexander Stephens famous claim that slavery was the "cornerstone" of the new Confederate constitution.
And might I add, it's typical Democrat mind-set: projecting your own feelings onto others.
You wish the "cornerstone" of the Confederacy to be also the "cornerstone" of the US Constitution, when in fact, it was nothing of the sort.
But as Reily pointed out, your claim does fit rather well with the 1619 project, and so maybe that's your true home-base?