Obesity isn’t a social inequality problem, except in the sense that obese people are more likely to be poor, and to suffer obesity due to stress, poor nutrition, and addiction. Obese people are not oppressing anyone. If you want to talk about food waste while people starve, then talk about the corporations throwing perfectly good food in dumpsters that they put a padlock on to stop homeless people from dumpster diving.

Sure, obesity was a sign of privilege and oppression 200 years ago, before modern agricultural practices such as the use of pesticides and heavy machinery. These days, there isn’t too little food, there’s too much. Starvation isn’t a problem of natural scarcity, and certainly not a problem of people eating too much. It’s a product of artificial scarcity, wherein good food is thrown away because people can’t pay for it. Your political theory is two centuries out of date. It’s time to stop hating fat people.