The Empathizing-Systemizing theory is a theory originally put forward by psychologist Simon Baron-Cohen. It suggests that female human brains are more geared towards "empathizing" whereas male human brains are more geared towards "systemizing".

What does he mean by "empathizing" and "systemizing"? Well:

Empathising is the drive to identify another person's emotions and thoughts, and to respond to these with an appropriate emotion. The empathiser intuitively figures out how people are feeling, and how to treat people with care and sensitivity.

Systemising is the drive to analyse and explore a system, to extract underlying rules that govern the behaviour of a system; and the drive to construct systems. The systemiser intuitively figures out how things work, or what the underlying rules are controlling a system. Systems can be as varied as a pond, a vehicle, a computer, a maths equation, or even an army unit. They all operate on inputs and deliver outputs, using rules.

He then goes on to describe research that seems to suggest men prefer and are better at "systemizing" whereas women prefer and are better at "empathizing", even from a very young age. He cites neurobiological research on the role that androgens play in systemizing. This wasn't mentioned in the article, but I have also read research on sex differences in monkey toy preferences, which came to similar findings. To me all this seems to rule out the oft-repeated claim that these disparities mostly due to socialization.

If women are aren't good at or interested in systemizing, then that would explain why so many women on PPD misunderstand and/or dismiss empirical research on human sexual behavior, cognition, and preferences.

Instead, their preference towards empathizing may result in them preferring to explain sexual and relationship dynamics based on their own personal experiences with people they know. A deficiency in systemizing ability results in many of them being unaware of or dismissive towards the significant problems associated with this approach, including but not limited to sample size, sampling bias, and social desirability bias.

The fact that empirical research on this topic often produces results that reflect negatively on women likely also hurts women's acceptance of it.