You talk as if only fat people get criticized. Everyone gets criticized. Slim people sleeping around definitely get criticized. People who undertake risky sports and hobbies get criticized. People having too many kids get criticized. Smokers were practically hunted for sport. Being morbidly obese is like sky-diving with a parachute that was packed by people who don’t like you. Trying to convince us that it is the one and only behavior that should not be criticized is really unlikely to be successful.
I never said fat people are the only ones society feels justified in humiliating and lashing out at. I was hoping to get across they have a God given right to exist and live in peace. Including going out in public and trying to have a good time.