I don’t believe I blamed it on Uncle Sam. And, overeating carbs (my responsibility) seems to be what leads to obesity. The author wasn’t disclaiming a personal responsibility at all. He was identifying the correct (apparently) causal factor.
You would do well to watch this. It goes into scientific detail why carbs are the culprit. Carbs increase insulin and elevated insulin levels allow storage of fat. The lower the insulin levels and fat breaks down. This is why diets like Atkins works.
https://www.youtube.com/watch?v=M6vpFV6Wkl4&feature=player_embedded#at=181
Knowledge is power.