1. Her lack of genuine compassion
  2. Her lack of genuine physical beauty [hence their usage of make up and other manipulation tricks]
  3. Her lack of a personality---- edit as a 3rd one because it's also yet another powerful reason

When you find out that women genuinely lack compassion and physical beauty [make up etc] and a personality... it becomes clear that you just can't value them anymore because they don't value you nor are they physically beautiful plus on top of all that they are uninteresting and in a lot of ways 1 dimensional shallow NPCs full of hatred, ignorance, and not interesting at all.. in fact real NPCs made by male programmers and writers are more interesting than women