Kind of strange how some stupid ogre with a basic axe was able to rob me of 20 fatigue with 59% damage resistance.
So if I were lightly armored hed be taking out almost 40 fatigue a swing. Why do enemies get massive fatigue damage bonuses when attacking while the player is stuck with 1-6 or 2-9 or whatever their weapon base has?
You appear to be forgetting about the bonus melee damage deriving from the weapon wielder's strength.
Let's take the example you already mentioned. The half ogre at the entrance of the Boil may be stupid and may be wielding just a basic axe, but he has a most impressive strength of 24 translating into a bonus melee damage of 28. With the axe's 1-9 base fatigue damage and the "3*max base damage" upper damage cap, the half ogre deals 27-27 fatigue damage with each swing of his axe.
That being said, his attack would mean 27 fatigue damage against an unarmored opponent. You have 59% normal damage resistance. That * 0.7 = 41% fatigue damage resistance. 27 lowered by 41% = 16 fatigue damage, and that's what you receive with each of his landed hits.
There's no player-enemy injustice here. If you were a half ogre with maxed out strength, you too would deal such fatigue damage with a mere axe.