Just as mandatory tolerance increases for every conceivable moral perversity, so mandatory intolerance is increasing for every physical foible: smoking; not wearing seatbelts; not wearing bicycle helmets and now being too fat:

Bias against obese people increasing, study says

Yale University scientists who searched through medical studies on weight bias published between January 2000 and May 2008 found:

More than half of 620 doctors surveyed view obese patients as “awkward,” “unattractive,” “ugly” and “non-compliant.” A third went further, painting the obese as weak-willed, sloppy and lazy. Even dieticians, personal trainers and doctors who specialize in treating obesity exhibit fat phobia.

There must be a correlation. I suspect that humanity has a natural inclination to condemn – one which must be indulged for a happy, balanced life. Since little remains that can be condemned as ethically wrong – other than telling someone what they are doing is ethically wrong – we have to take it out on the fatties, smokers and non-exercisers.