That's a valid complaint - but people cracking on fat people is hardly limited to airline circumstances only. It's every day, on message boards, on the street, etc. There's really no need for it. Airplanes are probably the worst example, because there are tons of annoyances perpetrated on passengers by other passengers. I sat next to a man on a flight that had body odor so strong, a woman across the aisle had to hold a handkerchief up to her nose. My eyes actually watered, and I'm not even exaggerating. I can't count the number of times I've been seated next to (or within earshot) of screaming, bouncing children who interfered with my comfort and made me unable to relax, sleep, etc. So while I think it's a valid complaint, it's one of the very, very few circumstances when a person's weight directly affects you.
As to health insurance, like I said, unless you're going to direct similar hatred to smokers (who cost far, far more than fat people), the uninsured, people that have tons of kids, etc., it's really evidence of more singling out fat people for ridicule.
I could actually give a pretty thorough analysis of how people with children actually cost everyone more time, money, and aggravation than pretty much any other group. But it's much more acceptable to blame everything on fat people.
They are fat and no amount of political correctness can talk all that fat away.
