Upvoted for noticing, but... Jesus did this shit in the Parable of the Good Samaritan. He is trying to teach his audience not to pass by on the other side, so in his parable he has a member of a reviled minority (A Samaritan for gods sake! Total shit!) do the good deed, setting the example. The emotional manipulation is: you've got to stop and help, to prove that you are better than shitty people (such as a Samaritan, ugh) So maybe it is the same here, shaming white folk for getting fat. The emotional manipulation is: look, even black folk can stay human.