Right. Nevermind who actually made the argument, blame it on the atheists, because that just feels right to you.
You just can't lose, can you? You've blatantly tossed the facts out the window.
It's not your English that's at issue, but your history and your logic and your use of scapegoats. Believe it or not, the slavery advocates were Christians, even moreso than their counterparts in the North, and the denominations which were on the side of slavery are still large and important in the US. You simply cannot slide the blame off to someone else just because you don't think the people who did this were right.
Why are we still blathering and dithering over slavery? It has been illegal in our great country since the end of the Civil War.
There are no slaves in America.
There is disparity but also welfare.