Does an act of overindulgence only disgust you when those who are indulging are obese?
Pretty much, yeah. And I'm speaking as someone who's overweight myself. When my 120-pound Asian girlfriend eats a slice of pizza bigger than her head, it's cute because she's the one doing it. When a 350-pound fatass eats a slice of pizza bigger than their head, it's fucking disgusting.
Anti-fat behavior isn't just a matter of personal preference. It's hard-coded into our genes, and to try to ignore it like it doesn't matter is just as idiotic as depriving yourself of sex because some Bible-thumping fucktard says to. Physicality matters, perhaps more than anything else, and the sooner people get over that, the better off all of us will be. This is not the 1860s, fat people are not black slaves, and you are not in some shitty, overcorporatized cyberpunk future on a crusade to save the poor downtrodden fat people from oppression by people who are actually worth interacting with.
You know what else pisses me off? Fat people who are like "but I have a good personality wah wah waaaahh!" You know why? Because most of the time they DON'T. If they did, they'd be honest with themselves that they don't have any self-control, and either stop eating 14 Ho-Hos per day or develop some overwhelmingly compelling reason to talk to them in spite of their repulsive appearance, like being funny as hell or contributing immense amounts of new scientific knowledge to the human race. Otherwise, they can fuck right off.
I ain't talking about people who are 10 or 15 pounds overweight; the Hollywood image of hotness doesn't turn me on, anyway. Half the time I look at their models and I'm like "goddamn, bitch, eat a fucking burger." I'm talking about people who are 100 pounds overweight and
continue to display this kind of behavior.