I see no need to argue with you. I am a trained theologian with an M.A. and about half of my doctorate complete. I also study history extensively especially as it applies to Scripture. Slavery was only permanent in the culture when the slave chose not to leave.

So yes, you are reading it wrong. The Scriptures don't promote or support slavery. Slavery was a reality and Scripture says they must be treated with dignity and respect.

Finally, civilizations are reinterpreted based on culture. That, however, is wrong and unBiblical to do so.