A blog post by Alistair Roberts, as curated by Steve Sailer. (Steve's version is shorter and more targeted; the original blog post is the fourth in a series on triggering and suffers for its reliance on the particular issue.)
It seems like a very useful dichotomy, and strongly reminds me of Ask and Guess.
Are you intentionally picking the stupidest possible interpretation of what I wrote? Surely you can think of a more charitable interpretation than that.
[edit]
Yes. Abolition was a good thing; but it's insane to think that it was good because the Bible opposes slavery.