Generally, it’s better science to consider absolute risk, especially when many of these are meta review studies (AKA choose whatever studies support what I want to prove and make a portfolio of them.). You can see why this is an issue when you start with a belief and shape the studies to fit what the scientist wants, rather than interpret the data first to formulate a hypothesis. All of this varies study to study but I’ve seen quite a bit of bad science around this topic in particular.

I cannot say for certain but I likely use more butter than you. I am very generous with butter, ghee, and tallow. I am 58.5 pounds down (248.5 -> 190). I’d say beyond processed carbs, an issue for modern society is the extreme increase in omega 6 fats. In times of antiquity, humans would get about 1% of their calories from omega 6 fats. Now, western societies eat omega 6 at a breathtaking level. I can dig up some studies if you’d like but this high level of omega 6 can cause mitochondrial disfunction, less structurally sound cell membranes, and obesity.

Additionally, other mammals use high omega 6 to enter into a prehibernation state called torpor. Torpor is characterized by malaise, temperature reduction, and weight gain in preparation for hibernation. To me, it’s no coincidence that the average human temperature has gone down 1 degree Fahrenheit over the last 100 years, the rates of diseases of civilization up, and obesity up.

I have some sources from a group out of University of Cornell on all the above, if it’s something you’re interested in