I agree, slavery in the bible was about working for a living. One has to understand that in that culture (at that time,) animals, crops, precious metals, wood, threads/clothes, and weapons/industrial metals were considered currency. Not everyone was born into a family like Job that had 7000 cattle of each kind, nor did everyone necessarily have cattle currency. Not everyone precious metal caches, trade skills to make things out of metals/wood, [fine] fabrics, or [supreme].
So, in order to make money, some people had to work for wages - whether that be room and board, a [monetary number of] cattle, a mass of crops, fine linen, weapons and metals, or precious metals. The word "slave" is not mentioned ANYWHERE in the bible. The word in the bible that would be close to "slave" is "bondman, or bondmaid," which translates to "ebed, or shiphchah" respectively. The only place "slave" is used is in Jeremiah 2:14, but the word is an "implied" addition for contextual continuity - but Jeremiah previously used "servent," which translates to "ebed" in Hebrew. Slavery is an entity of oppression that came much later in history - when people ignored the details of how to treat a bondman/bondwoman. Moreover, slavery became an "entitlement" for people who set themselves so much higher than other humans that they felt that their "slaves" were their "property." Slavery is pure evil - and it is in no way comparable to Hebrew bondage. Slavery in its evil form has existed since Egypt and the Exodus, but Hebrew bondage is nowhere near comparable to the dispicable neferious actions of slavery. So, it is always funny when people use "biblical slavery" to give negative account about the OT, Christianity or anything else - especially given that SLAVERY is found nowhere in the bible. Slave is found in Jeremiah 2:14 as a added non-original word, and slaves is found in Revelation 18:13, and it is "soma" in Greek, which means "body in a very wide sense of the word."
Hebrew bondage = modern employment. Are you in bondage if you are born into money, and do not have to work to pay for food, housing, cars, essential needs and even wants? No; you are a free man. Are you in bondage if you have no debts, and you live off of the grid, with all of your assets paid for, and you do not have to work to get your essentials? No, you are a free man.
Are you in bondage if you have debts like rent, loans, credit card bills, bank payments, car payments - and you must work for someone else in order to receive wages to pay these debts and get your necessities? Absolutely. It may be hard to swallow, but anyone with a debt (not the unlawful debt of things like T.A.R.P. and AHCA,) and/or anyone that must work for wages to receive their necessities are bondmen or bondwomen. Slavery - like imperialism, American and European slavery - is something completely evil, and nothing like what God meant for bondmen in the days of the Hebrews. There were rules set up on how to treat bondmen - and even mercies. One of those mercies (Year of Jubilee) is something American Bankruptcy laws [used to] use - your debt is forgiven after of seven years of attempted payment, but without fully paying the debt.