The problem is when a man marries a thin wife (and finds thin attractive), works hard to stay fit himself and the wife doesn't care enough to do the same.
You said the problem is with selfish woman who don't care enough to stay thin to make their (shallow) husbands happy...
I verbally spar with teens, tweens, young adults and a matter of fact ten year old daily...FR is kinda like my 'bullpen' warm up.
Why is it shallow for a man to expect that his wife care about his happiness? The fat is a symptom. There are other symptoms of the same kind of selfishness. Trust me. Most of the women I know that are huge, have many other traits that are symptomatic of basic selfishness. So we perhaps have battle b/w shallow men and selfish women. At least its easy to make a shallow man happy... just lose some friggin weight.