How about de facto relationships laws and #metoo movements?
These make long term or short term relationships much more risky for men. As a result, men stop pursuing women in a romantic sense, therefo...
I'm sure that's part of it, for sure.
> Superchiasmic Nucleus: scanning social network for fertile feminine behaviour patterns.
Scanning...
Search timed out. No females found. Setting Reproduction fitness budget to zero...
> Superchiasmic Nucleus: scanning social network for fertile feminine behaviour patterns.
Scanning...
Search timed out. No females found. Setting Reproduction fitness budget to zero...