That's where you are wrong. The cultural expectations are still very similar to 1970, but the means to achieve them have worsened considerably. Something like unable to afford housing hits men far harder than women when it comes to social aspects. Language reflects this, with words demonizing men who still live at home or living in a bad place being far more prevalent than the other way around.
Men and women work on different formulae. You can't simply say 'oh we give both the same input so the effect is the same'.