To me, fat people are actually a health risk and a major added stress in my day to day life. I'm a paramedic and my job is basically to help those who need help. Now, while I will give -anyone- the finest treatment and security while under my care, be they murderers, child molestors, fat people or smokers... there is a certain amount of mental strain whenever I deal with a patient.
Self-inflicted injuries, diseases or illnesses are... vexing. They're very annoying. Every time I have to go out and give medical care to someone who did these things to themselves, I might be too busy with that person to respond to a call where someone needs help -without- having caused the issue themselves.
Smokers are almost -never- an issue in that regard. When a smoker gets cancer or other lung-related troubles, they are almost never in need of an ambulance to transport them anywhere, or emergency medical aid. Fat people, though? I have long since lost track of how many times I've responded to calls where self-inflicted obesity is the primary cause of an illness, injury or whatever I'm responding to.
These are people I have to give aid to, then -very- often strain my back and risk my own health and safety to carry on a gurney or carry-chair into an ambulance (where they barely fit) down stairs and so on. It's painful, it's very hard and every single time it's a gamble with my own health.
Do these people deserve medical aid? Absofuckinglutely, just like everyone else out there. No one should ever be deprived of medical aid when needed. Do these people deserve to be 'protected' from the same treatment smokers and so on get? No. Not even remotely. Yes, there are some glandular and genetic causes for obesity, but those are extremely rare compared to the amount of horribly obese people there are out there. And even those cases -can be rectified through diet, activity and in some cases, medical treatment!-
Being overly obese IS a choice. Even in the cases of the people who have legitimate medical conditions that makes obesity much more likely. Do they deserve hatespeech or harassment? Absolutely not. Do they deserve to be PROTECTED from pressure and social endeavors to reduce obesity internationally? Hell no.
If you're fat... I'm going to come give you the best damn medical treatment I can give you when you inevitably have serious and acute medical issues as a result of it. You should, however, know that YOU are putting my health at risk with your choice, and you are also costing society massive amounts of money because you have -chosen- to be fat.
It's damn near impossible for us not to resent that fact, no matter how good we are at hiding that we do.