You're exactly right. This is the danger of political correctness. Sure it might hurt someone's feelings to hear that being overweight will give them poorer health and less success on the dating market, but those are harsh truths that they need to learn because it is in their best interest. It's better that they learn it when they are merely the fat kid in class and not when they are 35, 200 lbs overweight and diabetic. "The road to hell is paved with good intentions" has never been more true.