Is there a particular reason he hates women so much?

❝ Oh 'fer fuck's sake, this fuckin' shit again. ❞ How many FUCKING TIMES did he have to address this? WHY did everyone think he hated women? He didn't! Having opinions about something didn't mean you necessarily hated said thing. Nnoitra simply stated the truth - that women were weaker than men. In general, they were all WEAK. Of course, there were exceptions that defied the natural order of things. Nelliel, for example, or Harribel. But generally speaking, women were weaker than men. There was a reason why most Hollow and certainly most Arrancar were male. Because female Hollow didn't survive for long in Hueco Mundo.

Nnoitra DIDN'T like the thought of a woman standing above a man on the battlefield, because she shouldn't be there to begin with. It was not natural. She was prey. She was weak. This had nothing to do with him hating women. He simply valued strength more than anything, and in that department, women fell short. That didn't mean there couldn't be other uses for them. There were plenty of tasks they could perform, but they better not fucking be put in a position where they were above him in rank.

Even so --- If they treated him decently, even them outranking him, he would ( reluctantly ) accept. He didn't have that much of a problem with Harribel.

Nnoitra was a primal being. He saw women as either something for him to fuck, or for something for him to eat. That was all. Did it make him an animal? A beast? SO WHAT!?