On the other hand, if power in the US was as centralized at the time as you seem to suggest it should be, federal marshals would have simply enforced the escaped slaves act over abolitionist state's protests.
Returning escaped slaves was in the constitution itself (fugitive slave clause).
Founders’ intent is pretty irrelevant to today’s problems. They ran forced labor plantations, hadn’t mastered electricity or germ theory of disease, and the biggest city was ~30K people.
1 person = 1 vote, get rid of all the rural planter rigs.
