[Devils'Advocate]

Now that's a damn good question SJ. It's obviously meant to be hurtful, and has no place in civil discourse. But I wouldn't be near as insulted. Probably because of the historical baggage AND the societal pressures. There are plenty of bald male celebrities that are seen as "sexy". When called "baldy" there isn't any further connotations. But when called "fat" there are connotations there. Those connotations don't follow "plus sized". But fat carries with it "lazy, disgusting slob". You may not say those words but we hear it.

And I have heard, in private, those words strung out by people who don't know my history. So I know those perceptions exist. And it's not a tiny fraction of society that believe those links.