The Freepers you refer to mostly include meat, eggs, fish, and dairy in their low carb diets, and don’t include the kids. It sounds like GP wants to live on tree nuts and miso soup.
Also non-starchy vegetables.
I agree. There are people with valid disease and allergies who indeed need to stay away from gluten and dairy...but that is not most people. Female starlets whose next roles depend on their being a size 2 are not the ones to listen to for nutrition advice.
When I was a nursing student my old nutrition instructor told us the problem with the American diet is that it is too refined. When you eat carbs... eat whole grain, when you eat an apple don’t throw out the peel, you get the idea. Also I eat what nature gives us not what some person cooks up in a lab..but that’s just me.
That being said it is not anyone’s job to tell someone else what to feed themselves or their families....especially hollywood females who are prone to eating disorders.