Why can't I hate, or make fun, of fat people?

because people who make fun of people for being obese or too skinny are assholes. because thats their lifestyle and their addiction, thats what they know and its hard to change that, just like quiting smoking is hard. just like skinny people who can't gain weight no matter how much they eat, you wouldn't make fun of them. so you shouldn't be concerned with other people's lifestyles, body types or genetics, there are so many reasons for people to be the way they are, and its likely that you don't know or understand them so just worry about yourself

I share your opinions, but some people reckon its a hormonal thing and therefore can't be helped and therefore can't be made fun of...

Put these 'hormonally fat' people in a concentration camp and see if they stay fat, I have a sneaking suspiscion they will slim down right quick.

What you should think is that fat people are not like you and me. According to studies, they have not just bigger fat cells than us but more of them. Even after such people have reduced their weight, the sheer number of their fat cells prompts a continuing hunger alarm. Like former alcoholics who never consider themselves finally cured, a man or woman, once overweight, is never totally free of his or her obesity.