According to the 2010 US census, over 1/3 of all Americans are obese or overweight. Considering that there are 12.079.....% more females in the United States of America within, dating ages (15-44), adaptation is another factor to take into consideration.
Since the beginning of time there have been men specifically attracted to overweight women, although the predominate image portrayed through media are little lush dolls parading through America doing things, drinking, having random sexual encounters, bad relationships, designer clothing....... etc etc, this boils down to humanities appeal to the irrational, people are drawn to looking at beautiful women, this can be noted in the stimulation in the economy once advertising started to use beautiful women as advertising tools"
(in "gorilla capitalism" the government, business's don't care about people's love life, familial relations . . . etc. It's all about getting the bottom line. This behavior promotes either jealousy, envy , competitiveness, and heavy heavy spending either through manifested feelings of "self doubt", "self hatred" or by literally planting seeds for unhappiness, break up. Single people spend more money. Then while other random events happen around the world all the attention is switched to the rest of the world while the United States bleeds money from wall street, the market, financial thieves, programs like "planned parenthood", children's after school activities, medical care rises, cost of living through the roof, there are "tent cities" in the united states, homelessness , unemployment, love all sold, some states have sold waterways, public facilities were sold to foreign entities, your America being sold to the highest bidder, we don't even control out voting process anymore from the international campaign contributions )
Despite this there are some movies, television show's and media with overweight women, although it is not predominant it's still there. Ask yourself this, is there a male version of the movie "Shallow Hal"?