celiac disease is real but uncommon and frequently misdiagnosed
gluten allergies are rare and way overdiagnosed
there is a large grassroots “knowledge base” that gluten is in general harmful to everyone, as well as a whole list of other “harmful” elements, based on nothing but hype and hearsay, poor science and misinformation, and supported and encouraged by anecdotes of cognitive dissonance, and fed by a milieu, (as i said) of self obsession possible only in a sick, opulent, corpulent society.