HELPPP “This infamous [Dred Scott] decision of the Slaveholding wing of the Supreme Court maintains that slaves are within the contemplation [meaning] of the Constitution of the United States, property; that slaves are property in the same sense that horses, sheep, and swine are property; that the old doctrine that slavery is a creature of local law is false; that the right of the slaveholder to his slave does not depend upon the local law, but is secured wherever the Constitution of the United States extends; that Congress has no right to prohibit slavery anywhere; that slavery may go in safety anywhere under the star-spangled banner; that colored persons of African descent have no rights that white men are bound to respect; that colored men of African descent are not and cannot be citizens of the United States…”.

Question:
How does Frederick Douglass justify the application of Constitutional protections to African Americans?