That it's not true or helpful?
"You wouldn't worry so much about what others think of you if you realized how seldom they do." (Eleanor Roosevelt)
I don’t know where your friends are coming from; but this is the thought that came up:The idea of accepting ourselves sounds nice but obesity is a serious problem. http://en.wikipedia.org/wiki/Obesity Real compassion is not always being nice and compassion for oneself can also include facing a painful truth and taking responsibility for the amount of calories we put in our body.