Well of course it is never that simple. But having a healthy lifestyle(which is much of what the argument against being fat seems to hinge on), is definitely preferred than an unhealthy one. And you are statistically more likely to be fat if you are not exercising and eating properly. Just because some people are “big boned” and more or less “healthy” does not negate the increased potential for poor health associated with being so. Even if it is one of the symptoms and the cause is a sedentary, over processed, nutritionally deficient existence, and not the cause, it is still something to look at and take heed of.