Here would be an almost textbook example of what I mean when I say shaming people for not putting in the effort, for any onlookers that are curious.
Of course, the actual clinical data shows that it is nearly impossible to make permanent lifestyle changes that reduce weight for normal people -- all diets studies have almost hilariously high dropout/failure rates -- and that nearly all people who are not fat are not putting in any special effort to not be fat. But this guy's an expert.