Scalia Loves Slaves

Couple days ago in CivPro...Reading a Scalia opinion in which he rules a certain way because that's how courts have traditionally dealt with it (an originalist approach- what would the framers have said?) I criticize this approach, saying that society has changed over the last 250 years; for example, slavery existed then but clearly isn't acceptable anymore. Professor interrupts me to point out that the 13th Ammendment took care of slavery and asks whether I am suggesting that under Scalia's originalist approach, slavery should still exist, as all the black students in my class turn their heads back towards me.