As a polite summary: They cannot stand the thought of a thin, healthy weight woman being happy. It's an impossibility in their collective hive mind, so it must be rejected.  Which, is, of course, absurd.  They'd like to make it sounds as if all thin women, particularly thin moms, live in misery and don't actually get any benefit from truly being healthy. Madness.  Talk about not knowing that of which you speak.