Obese Children, parents at fault

Iam writing a controversial paper and I would like some opinions of the public.  I feel that a child suffering from obesity is also suffering from abuse, A child cannot buy groceries or make nutritious decisions for themselves. I also find it wrong a child can be taken away from their parents if malnourished but the child is allowed to stay with the parents if the child is morbidly obese, in my opinion that is another form of child abuse and should be investigated, I would appreciate comments that are valid I am not posting this to create a battle board this is strictly for a scholarly paper, thank you in advance for your opinions!