The most glaring example of this need to craft a big, ugly poster of John's face and caption in "JOHN WAS RIGHT" is, of course, Elly herself. Given that she turned into a wonder chef, wonder mother and wonder housekeeper after she 'decided' that wanting a career was destroying her, it's sort of obvious that just perhaps, crazy woman hormones actually were keeping her from enjoying her inevitable lot in life. The presence of Therese alienating herself from happiness by wanting a career but not especially wanting children tends to add credibility to the idea that Phyllis Schlaffly is ghost-writing the damned thing.
If so, she's being helped out by Tom Batiuk of the Insistent Hometown Fixation; that's because we learn through Liz that wanting to explore the scary, scary outside world is a silly idea that girls must be steered away from because it will only bring them pain. Also, we have to deal with Deanna being forced into a male occupation because it took Mike forever to man up and work out of the home instead of in the evil city; once he was safe at home where he belonged, a grateful Deanna could engage in the feminine pursuit of teaching knitting.
Finally, we have to contend with the fact that Evil Becky either deliberately pursued a course of action that alienated her from her female friends and their happy, productive lives or was pushed into it by unbalanced family politics. The idea that she might want to leave a town filled with Stepford robots who smile, smirk and simper as they sell their dignity and self-respect away for a mess of pottage is not one that occurs to a Lynn, Elly or Deanna because doing so means looking in the mirror and seeing a monster of self-hatred and internalized misogyny.