They aren't a monolithic group. There was a wide range of opinions on slavery and many other topics. Do a bit of research.
The only acceptable opinion today should be that slavery of all stripes, practiced both before the emancipation proclamation, as well as today in both prison settings and trafficking, is abhorrent.
The only acceptable opinion today should be that slavery of all stripes, practiced both before the emancipation proclamation, as well as today in both prison settings and trafficking, is abhorrent.