It helps that we’re right. That it can’t be bad to eat what humans have eaten for 2 million years.
But 2 recent things I’ve looked at were studies done a few decades ago and shelved because they didn’t get the “right” answer, but were recovered recently and published showing the lipid hypothesis was wrong and the cause of metabolic disorder was carbohydrates
They were suppressed in the 70s and 80s, now they are published. Dietary guidelines in Australia (one of the biggest wheat exporters) now allow low carb for treating type 2 diabetes.
I do believe we’re watching a change in consensus (which as always is progressing one death at a time - perhaps it’s good that the other side is committed to a metabolically dangerous path)
There’s also so much money in the chain between a farm full of wheat to a box of highly processed “food”, compared to the simple path of meat varying from cheapest self harvested, self butchered, self stored through to using a professional butcher who buys from a meat packing plant through to the most expensive - supermarket meat
Money plus religion versus reality
The imagined path of wheat is the same as the feed for almost all of the meat that’s eaten today.
Cows don’t eat breakfast cereal, bread, or cookies
The cows I eat eat grass, the cheapest meat is raised on grass