In my 2-month free course on WhatsApp, I debunk the gluten myth and explain that the health issues attributed to gluten have nothing to do with gluten itself but are due to the Roundup herbicide sprayed on wheat crops before harvesting. The following news article serves as the smoking gun evidence for this claim.
Additionally, I want to mention that earlier this year, a major study revealed that gluten sensitivity is mostly due to the nocebo effect. Those who believed they were gluten sensitive experienced health problems even when they were fed gluten-free food but were informed otherwise.