USA Today has an article about how weight discrimination could be as common as racial bias. This comes as a shock to abso-fucking-lutely no one who has ever been fat. Or who has eyes and a brain.
I would venture to say fat hatred is more common than racism. It’s mainstream and socially acceptable in a way that racism no longer is. Not that racism isn’t still alive and well, unfortunately. But you can still tell a joke about fat people without worrying overmuch that someone in the room will be offended. You can still yell “Lardass!” at someone who cuts you off in traffic without anyone getting too het up over it. Actors still put on fatsuits to get cheap laughs in movies and television. Blackface as a form of enetertainment has been dead for at least 50 years. (Tropic Thunder notwithstanding–it’s not a parody of black people, but a parody of douchebag actors who take themselves way too seriously.)
If you still doubt me, look no further than the actual article. The sidebars are all full of links about weight loss, personal trainers, low-cal foods: Fat people are lazy slobs who spend all day stuffing cupcakes into their craw! Fat discrimination is bad, but actually being fat is worse and if you don’t want to be called names, you should just lose some fucking weight, fatty.
Or look at the comments, but only if you don’t mind feeling stabby. People are actually comparing fat people to drug dealers and pedophiles. Look at those comments, substitute “black” or “Chinese” or “Albanian goat herders” for “fat”, and ask yourself: Would that be even remotely acceptable? Of course not, it would be hate speech.

