We Americans worry too much about germs, diseases, and calories.
If someone is eating so much that they're obese they obviously have their priorities screwed up. We have become a lazy nation! There's a remote for everything and that's what most people do every night- sit on their fat arses and watch TV. It's unnatural.
We are mammals that no longer have to work for our food.
My work helps keep me pretty fit. I'm 6'1" and 190#, but I know guys that are shorter, heavier, and in better shape than I am. It really isn't about someone's actual weight, it's about their ability to hike 4 miles to a good turkey roost.