I have never seen someone misunderstand a concept so badly. Many companies redesign their products or create new ones (ex. GF Rice Krispies) for people who are allergic to gluten. There are many reasons why they do this and also a lot of reasons why companies don't do this. I don't understand why you think asking major brands for new options is outrageous, they do it all of the time. Celiac disease is tough to deal with, simply saying "don't eat the foods" is obvious and shows your ignorance to the issue. It can cause more than physical harm, not having anything around to eat (and most importantly, enjoy) like everyone else can cause great distress. Food is important, you should at least know that. Also, to note, I don't know why you think your double-jointed fingers analogy was relevant, it is not even close to the scale of any autoimmune disorder.