Slavery’s still going strong in the USA. An exception to the amendment that “ended slavery”, didn’t. It allows slavery to continue and it does continue.
I don’t know about other nations and slavery but I know America’s is alive and well and going strong.
It wasn’t that many years ago that I noticed:
“except as a punishment for crime whereof the party shall have been duly convicted”
Well, that means it’s not abolished at all.