Exactly bodged, but have a look at the "being fat is a choice", a lot of people hate that there are these variances as it does not suit their narrative of fat person = fat, lazy, unable to control their portions, don't eat like thin people etc etc (with the usual caveat of illnesses and meds etc).
I struggle to lose weight, eat soup for lunch and dinner, portion control excellent, do not snack, rarely drink alcohol - like once a month tops, exercise like mad - 9-10 hours a week, every day, I lose a pound a month at most. However went on holiday for 5 days and put on a stone (2 stone but 1 stone came off overnight as that was water, the stone took ages to lose again) . But like you, it can't be true, Apparently.