Based on your logic, slavery should also be a force for good. Which is understandable, based on the amount of slaves Christianity has created.
Slavery has existed since the beginning of mankind. Most of it was indentured servitude, not forced slavery. You act like this was a Christian invention. I suggest you do some research into just how many slaves were brought to America compared to the rest of the world. I believe it was something like 6%. They were brought here by the British. It was a British institution not a Christian institution. The reason we have race problem today is because back in the 17th century (maybe 18th) a British official wrote a law to prevent mixing of races which spread throughout the colonies. The rest of the world did not do this and allowed the races to mix.
The Greeks justified forced slavery because they believed they were morally superior. The Romans believed that forced slavery was against the Law of Nature but justified it on the grounds of state supremacy. Our Founding Fathers believed that slavery was against the Law of Nature but knew not how to end it at the time of our founding but wrote the Constitution is a way that would lead to its end. I suspect that you have such a poor opinion of America and Christians that you won't believe this either. Why? Because it appears that you believe slavery existed because of Christians.
Slavery was a religious invention, not necessarily a Christian one. But the Christians took full reigns on that one once they got in power, and have been promoting it for about 2000 years.
Which is totally against what the idea of Jesus is about.
But hey, why bother with trivial things like that?
I believe in Jesus as a symbol for goodness. Christianity has not followed the goodness that he represented. And, along with other religions, they have done the most cruel, sickening, and inhumane acts in the history of the world.
That is not what Jesus was about... I hope you can embrace the idea of goodness, without need for a ruler with a whip and financial interests.
I wish you, and everyone here, a Merry Christmas!