I wouldn't be so certain that slavery went away; it's just got a better PR firm these days. Sure -- the visible physical chains are gone, but they've just been replaced by debt. The whipping has been replaced by (often for-profit) prisons that love to lobby for harsh sentencing guidelines (aka more inmates, and more profit!).
The young software developer sitting next to me at work has 100k in student debt. Even with the good money he's making, that's no small feat to pay that off at the interest rates he's forced to pay. By the time he gets that paid off, he'll be lucky to be able to afford a modest house, at exorbitantly inflated prices due to our banker's inflation of the housing bubble. Until then, he'll be paying through the nose to rent apartments likely owned by Blackrock. Say he gets lucky and pays off a house someday, once he gets older, he'll likely be like the coworker sitting on the other side of me, who has basically become poor with medical debt from health issues arising from diabetes. If she and her husband get only the insulin their doctors want them to have, it's $2400/month. They're supposed to have other meds as well -- one I remember is $5,000/month.
With a recent cancer diagnosis, if things don't go well I'll be in the same boat, paying into the pharmaceutical/healthcare racket that is now the leading cause for bankruptcy in the US (and like most of those declaring bankruptcy, I have health insurance).
To top it off, the slaveholders (i.e. goldman sachs, JP Morgan Chase, Pfizer, Northrup Grumman... damn near every major publicly owned corporation that has wrested the government from we the people) have purchased the TV networks that most Americans are addicted to, and have us all convinced that we're the "Freest Nation on Earth!" while we struggle to pay inflated debts that our grandparents never had.
I think we Americans should hang our heads in shame at what we've allowed to flourish in this country. Our founding fathers must be rolling in their graves. They fought to rid themselves of criminals who were much nicer than the ones we're paying homage to.