The rationale doesn't matter; Constitutionality does.
I was taught in public school that determining Constitutionality was what the Supremes did for a living.
A timely ruling in this case might possibly have saved a lot of bloodshed later on. Tho' Jackson of course was famously no respecter of the Supreme Court.
Birdwatcher
"...if the gentlemen of Virginia shall send us a dozen of their sons, we would take great care in their education, instruct them in all we know, and make men of them." Canasatego 1744