Everyone talking is about what they find attractive. Bisjac is talking about the long term major effects that fat people have on society. Now I know how much of a degenerate selfish prick I'm about to sound like right now, but I couldn't give a stuff. I'm not thinking about the well being of society when I get a boner. It's not my job to save health care by insulting fatties. I really doubt that would even work.
And I am not fat, and that's not because I exercise or watch what I eat. I send positively zero effort toward avoiding getting fat and I'm still a scrawny little twig. If obesity can be avoided by fat people putting more effort alone, I should be quite the fatass.