Poe's Law comes to mind. I sometimes honestly can't tell if these people are serious or parodying.
Added by edit.
You don't have to go far to see examples of this. Our very own buz continues to insist that the whities were doing the blackies a favor by kidnapping them from Africa, cramp them onto overcrowded ships, dumping half of them into the sea on their way to North America, and sell them off into American slave markets. Why? Because at least they were introduced to christ.
Don't believe me? Just ask buz himself.
Edited by Taz, : No reason given.