Why do you think I'm fat? I'm not

> Irrelevant. It is not more healthy to be fat than it is to be not-fat because it's hard. Acceptance is not going to change a damn thing about the health risks inherent with being fat.

You are entirely missing the point. The issue is "given that I'm going to be fat, perhaps I should work with what I have, rather than beating myself up over the fact that I'm fat". Once you do that, you can start to look at what else you might change about your life that would improve your health.