Allow me please: The right to own, sell, or transfer private property.
As good a reason as any to fight a war.
And who was denying that right? How was that 'right' being infringed? The Federal government, sadly, acknowledged that certain humans were nothing but property to be bought and sold like cattle.
There was not a single statute or Federal regulation or even bureaucratic or judicial overreach that I am aware of that limited that 'right' within the states that allowed for it.
So tell me. What state right was being violated?