Slavery is the key tool of the devil.
It's so fucking sad to see the ideas of freedom and democracy be casually tossed aside by idiots.
Only ABSOLUTE SLAVERY in my opinion. The majority of slaves throughout time actually choose to be slaves for protection, housing, food, and water and to be taken care of.....lets not forget about indentured servants who became slaves for a short period of time for passage and travel to the United States because there were no jobs or opportunities in Europe...afterwards they were able to leave and start their own farms.
However a person who was born into slavery or who never signed or made a verbal contract without any opportunity given to him to become a free man is where slavery in my opinion was wrong and generally situations like that always ended up backfiring...from the Egyptians with the Jews to incidents such as the Nat Turner Rebellion. In forced slavery, you're always taking a huge risk because at anytime, your throat could be slashed while you were sleeping.