I don't feel abused by the post. In a fucked up way, it's kinda funny. But that doesn't mean it's fine. I've heard much worse. Not necessarily about fat people, but other minorities. Being transgender here is impossible, for example. I have a trans friend and I have to hear my mother bitch about whatever "advantage" trans people have, but "shouldn't". I'm fine, but others aren't.
That's the thing that's funny about bigoted "humor", it's not actually funny, it just shows how shitty you are and how low your standards for comedy are :3