Glen D,
Part of Hitchens’ genius, I think, is that he lambasted Theodicy, the futile attempt to reconcile an Omniscient, Omnipotent, Omnibenevolent God with the existence of natural and chosen evil in the world.
Arguments against Theodicy are among the most powerful refutations of an Omnific God, but also the most emotionally wrenching, so Ad Hominem–while fallacious and unjustified in rational discourse–usually follows.
I admit I’d need an electric dog collar to keep me from insulting some of the apologists out there, especially on subjects like natural disasters or 20th Century Totalitarianism.