Let's say both sides have equal pros and cons, then let's decide by taste: By the way, about AHA: "In its early years, the American Heart Association (AHA) faced criticism for its "Heart-Check" certification program, which some argued was not as rigorous as government certifications and that the AHA accepted payments from meat companies in exchange for these certifications."
I went to the link you posted earlier regarding carbs. Did you look at the quality of those carbs? They're all fiber-rich, which helps moderate insulin spikes. Are you suggesting that diabetics avoid all carbs altogether? How many people would adhere to such a regimen.
Well, it is if both choices have the same importance of pros and cons. To dumb it down to you, if you have to choose between 2 cars and the pros and cons equal each other, it will come down to color. But here is a stupid argument for you because you like those: Since McDonalds stopped using tallow in 1990, American health went haywire and obesity skyrocketed. Coincidence?
Lots of "harmful" choices come down to taste or how they make us feel. So it is obviously relevant. Not everybody will live as a Mormon for longevity. You couldn't prove that tallow is signifficantly worse choice than "vegetable" oil. By the way they even had to lie about its name. What is the point of living longer by 2 months if you have to eat shit for 2 decades?
Here's some of the items from that link: brown rice, oatmeal, bread, pasta, corn, peas, potatoes, and fruits. All extremely high in carbs, all starting to convert to sugar before they even leave your mouth. It's hard to believe that until you put on a Continuous Glucose Monitor (eg, here, here, etc.) and then you will see how all these "wholesome" and "recommended" carbs are spiking your blood sugar. It pains me to say that as I used to eat and enjoy all of the above, but it is what it is. In the same way that an alcoholic should avoid all alcohol products, YES a diabetic should avoid any food that spikes their blood sugar and causes further damage to their already compromised system. As you imply most people do not have the discipline to adhere to such a regimen, but that's in great part what caused the problem in the first place. When their diabetes causes them to lose a toe, a foot, kidney malfunction, stroke, heart attack, etc. then maybe they will pay close attention to what goes in their mouth. Maybe not.
Spiking blood sugar sounds bad, but elevated fasting glucose levels might be worse. Some food for thought. https://pmc.ncbi.nlm.nih.gov/articles/PMC4625584/ Consumption of meat is associated with higher fasting glucose and insulin concentrations regardless of glucose and insulin genetic risk scores: a meta-analysis of 50,345 Caucasians1,2