Kori, I think you are overreacting, nobody said take all the obese kids from their families just the ones that are SO obese that they may very well die an early death, have no lifequality, etc... when a mom spanks once you wouldn't take the kid away either, if she spanks until the child is in danger of dying, it isa different picture!
Plus, sure being taken into care is not ideal, never ideal, but having dealt with families that had this happen to them (due to abuse) I can tell you, it is hard in the beginning but at some point the child realizes that his home was terrible and they were hurting him, for whatever reason. Taking someone into care is not a one day thing, a lot of people are involved, it doesn't suddenly happen, the families are aware of a less than ideal situation, the parents have been talked to by CPS, by shrinks, by paediatricians and only when it is clear that these parents are not willing to make the changes needed to enable their child a normal life, they are uprooted.
Unfortunately the process actually is so long, that a lot of children die in the abused household, because CPS did not get them out in time. My very closest friend was abused (in all senses, physically, emotionally and possibly sexually) at home, she is currently in a custody battle for her youngest brother. They have been battling for months and the end is no where near. It may be another year or two (of daily abuse for the little boy) until anything happens.
Secondly on topic, I think parents should have nutrition classes before they screw up their kids. Yeah sure there is the odd example of a child who was brought up to eat nice food and then gorges himself on donuts outside the house but most obese children are this way because their parents cook unhealthy food, and do not know which portionsize is appropriate for a small child.
On the beach with my mother we saw a family, 2 young children (maybe 7 and 5), both clearly obese. The mother fed them constantly, any time the kids were fuzzy, or crying about something she would stuff some food in their mouths. The kids had red spots on their thighs from them rubbing together, they couldn't run with the other kids... we were wondering, sure parents are educators, but not the only ones, right? What about the school teachers?
I think when in a school a teacher sees an obese child they should have a meeting with the parents and a nutritionist, that teaches them what and how much a kid should really eat. Sure you can't force them to feed the kids veggies, but (almost) no parent wants their kid unhappy, and seeing that your kid is getting fatter and unhappier should be at least an incentive to cook better food, to reduce the amount the kids eat.
In this particular case (555 teen), I think the state should sit down with the mom and figure it out, if she is unable to feed the kid correctly, maybe he (at teenage age, already old enough to make his own decisions) should go to one of those schools where they make the kids lose weight and teach them how to eat correctly.
A few years ago that obese preschooler was all over the news, she was like 6 and weighed 300 pounds or something. Her mom fed her like 3 pizzas for lunch and 12 l of coke a day, because she "didn't know better". The child was taken out of her care, rehabilitated both separately, and brought them back together. At 9 years old the little girl weighed 100 pounds and looked fine (ish, she still had a ton of skin hanging off her).
It is possible to do this, to rehabilitate an overeating family, but in my opinion we should do it before the kids are near death!
Camy