Thanks to Katja for pointing this out. Someone did actually get involved in the Slate Anti-Childhood Obesity thing with a well-rounded article pointing out the cruelty inherent in many of the proposals otherwise being made. I.e:
"Schools should actively stigmatize being fat," writes one member of the Hive; "few things are more terrifying to a kid than being an outcast." Another declares, "We need to stop telling children to 'love themselves the way they are.'" A third suggests that the government take custody of any child with obese parents, as a way to "get both parents and children motivated to exercise and eat healthy."
(The linked article provides links to these other proposals. I don't want to deal with them being on my page).
It also does a good job providing the evidence that shame doesn't work, that the more you are shamed for being obese the less healthy you are, and trying to make people actually think about the fat people involved. You can't have a War On Obesity without a War On Fat People - and having a war fought against you hurts your health more than anything.