Yes I agree it is immoral and detestable and was also the softest option for the day. No other contemporary culture had any protection for indentured servants, yet the Bible demands it at the threat of community judgment against the harsh and cruel masters. And the children of indentured servants were free citizens.

Compared to today it was still brutal and inumane, but was the MOST humane option for literally 3000 years. It’s just not progressive compared to today’s values.

And today’s values won’t seem very progressive to progressive humans in 3000 years either, something you are probably incapable of understanding.