I'm not arguing with your logic, I'm arguing with your delivery. The psychological mechanisms you're describing are real, and they're a serious problem for people trying to lose weight (among other things), and helping those people defeat them is a good thing.
It's that bit at the end, where you seem to imply that there's a conspiracy of fat people out to suppress the truth, that bugs me. I have only ever seen the word "fatlogic" used by the kind of people who set up Reddit forums to discuss how much they despise fat folks. Associating yourself with that undermines your credibility, and that's a shame, because your ideas appear to be fairly solid.
Could you not do that, please? I was with you up to that point. You don't need to be a dick about it.