it’s men who refuse to do their fair share

May I presume from your analysis that you support making 50/50 custody the default position in divorce proceedings, instead of what we have now, which is approximately 18%? It would free up a tremendous amount of time for divorced women to focus on their careers, and would also saddle men with more of these burdens you identify, dragging their careers down in proportion. Could close your wage gap concerns quite a bit.