Sure, but it is pure perversion for you to argue with Taney that the Constitution & Founders intended states had no rights to abolish slavery and African-Americans no rights to citizenship.
Clearly that was not the case, even in 1776, much less in 1787 or 1857!
Except for that pesky Article IV section 2 which makes it virtually impossible for them to do so.
How are you going to abolish slavery in your state with that clause on the books? Are you going to order everyone from a slave state to stay out of your state? You can't.
You can't keep them out, and you can't order them to leave their slaves behind. You can't pass any law to take their slaves away from them so long as they are held by the laws of their own state.
So how do you make a "free" state? How do you do that without running afoul of Article IV Section 2?
I think the founders made a compromise to secure the participation of the slave states. Later, states that wished to abolish slavery, reneged on the agreement.