To be clear about my experience, the guy that spilled over into my seat wasn't just overweight. He was obese...his weight had to be in excess of 400 pounds.
And I don't care if its genetics, he can't help it or if he just ate too damn much...his fat ass was in my space...space I paid for and wasn't getting to use and made me very uncomfortable for 9 or so hours.
Let's face it....most Americans are already overweight but if someone is so large that they can't fit into normal seating arrangements that the rest of fat-ass America doesn't have problems with, then tough shit..you should have to pay a surcharge for taking up more than the average and reasonable amount of space.
Yes, there are handicapped people in this world. But let's face this fact as well...you can't fix everything to make the world accesible to all handicapped people. I'm as sorry as can be that people have these afflications but there's a point where they have to accept that maybe they can't do everything a normal person can do and learn to live with it. If that means, in this airline situation, that they'll have to pay extra for space on a plane, well they just need to pony up the bucks and shut the fuck up about it.