It says no such thing and only your own wild fantasies imagine them the same.
Indeed, as I read the Dred Scott history, even crazy Roger himself never argued the kind of nonsense DiogenesLamp posts here over & over in defense of the Dred Scott ruling.
So we can see the most bizarre situation possible: DiogenesLamp agrees with crazy Roger's ruling but for reasons which crazy Roger himself was never imaginative enough to concoct!!
How does that even work?
Really? What does this mean?
No Person ... shall, in Consequence of any Law or Regulation therein, be discharged from such Service or Labour,