Selling Of Slave Women
Your opinion doesn’t matter because we know it for a fact the century we are living in is the best time the mankind has ever experienced. We have made our lives better in many ways. Humans are exploring universe and creating new things on daily basis. The life expectancy has increased. So there is no debate about which time is better.
This is not how morality works. The act of taking the life of a person isn’t evil in of itself. If a murderer is hanged, it is an act of justice and good. If an innocent individual is killed, then it’s evil. The conditions make an act evil or good That’s why slavery with the conditions of Islam is acceptable but without such conditions, it is evil. We need to understand the principles of fiqh and moral philosophy.