Understandable. They committed one of the worst instances of attempted genocide in recorded history, and that's only the start.
Still, I think I get the point too. Nothing happens without a reason for it to happen, however bad that reason is. Thus, nobody perpetrates these horrible crimes without thinking that it is the best course available to them. It's one of the oldest rules in the universe, I think.
Edited by TryingToBeLogical, : No reason given.
Logic is the ultimate argument; for none can refute logic with anything but logic. Thus, you will always walk away satisfied if you stay logical, knowing either you're right, or you're wrong.