“Here we go. The Bible is on the side of slavery.”
Is it?
Well you are the one who brought up the subject of sin, so I’ll bite.
Evidently you are aware that Paul didn’t order Philemon to free Onesimus. Maybe that was an oversight on his part.
I’m sure that the Almighty must have condemned all slavery as evil somewhere for you to make the claim, and perhaps you can guide us to the proper chapter and verse.
Unless your concept of sin has nothing to do with the Bible. If so then maybe you can tell us what rule you do use.
You try to make me your slave. Go ahead. Try it.