Just because atrocities like slavery, rape, and genocide have existed in the past doesn't make it right today, or at least not for me. Slavery has been practiced for thousands of years. How do you think the Romans could afford all those tremendous roads, buildings, and monuments. When the treasury ran low they'd go out and conquer somebody. They'd pillage anything worth cash and sell the people off into slavery to replenish the treasury. The Roman Empire collapsed when they stopped expanding and the treasury ran low. So yes, slavery has been around forever and has been practiced white on white, black on black, people that shared a common religion or common tongues. In what way does that make slavery right for today?
Slavery does exist today in different forms, even in our country. How else can you describe sex trafficking? About 20 years ago I worked with a man that said he witnessed slaves sold at auction. He was pretty emotional about it, I tend to believe him. Children are taken from their families and forced to become soldiers at middle school age. Does anyone think this is right because it happened in the past?
I don't go back in history and condemn people for practicing what was an acceptable part of their society at the time even if it seems barbaric to us today. I don't condemn Joshua for committing genocide at Jericho or other places, it's a very effective strategy when you are trying to get other cities to surrender instead of fighting. Genghis Khan used it effectively. Ethnic cleansing is still going on today. I equate some groups in our country to ethnic cleansing. Some just want to change us to a lily white country by running people out but I believe some of the hate groups would be quite happy to resort to outright murder if they could get away with it, even if that means blowing up a church with four little girls in it. Or maybe that is just to intimidate certain people to returning to being a sub-human race to be lorded over by the master race. I don't know what goes on in these people's minds.
I don't condemn Abraham or Sarah for owning slaves. That was the way of life back then. I don't condemn Columbus for the way the Spanish treated the people they found in the New World. The French and British took a different tact, but plenty of others followed the same model, the Portuguese and Dutch for example. I don't condemn Andrew Jackson for his treatment of the five civilized tribes, moving them out west. Some people of the time vigorously opposed him but he couldn't have done it without a lot of popular support. You can go back in history and find all kinds of things that today are considered atrocities but were accepted practice at the time by their societal norms. I have no idea what people 200 years down the road will think of many of our current accepted practices. I can't set myself up to behave according to their morals, I have no idea what they will be, I can only act on mine today.