What is with refusing to admit slavery is wrong?

[robvalue]

The problem, as always, is the preconception.

"The bible must be right. So there must be a way to justify the things it says. A rationalization must be possible."

No. You're trying to draw a line between two dots on pieces of paper which don't overlap. Exclaiming that they must be on the same piece of paper, or that the part of your line across the tabletop isn't there, doesn't make it so.