That's not quite the point I am making. The point is that taking either condition at its most surface level and just saying "why don't you just fix it?" is unhelpful.

The fact that there are known ways to help solve weight loss isn't the problem. Obese people know there are ways to lose weight. The issue is psychological - not believing one can achieve the goal, not being ready/willing to fully commit to the goal, feeling too ashamed of oneself to believe one can improve one's situation, and on and on.

Plus, you suggest that because the way to lose weight is clear (it is), that makes it easy. That's a false equivocation. I'm speaking from experience when I say it's simple, but quite challenging. That's like saying "winning the Olympic 100m sprint is easy, just be faster than everyone else." (No, I don't think my weight loss is an Olympian effort, but I am exaggerating for effect.)