Nobody seems to know what the questions are - let alone the answers.
"Junk food" is bad - but does "junk food" include all processed food - including cheese?
"Whole Food" includes whole modern grains, which, in my opinion, are best avoided.
The question, I think, is not vegan or carnivore, but, from the Low-Carbohydrate, High-Fat (LCHF) perspective, ¿What proportion of our energy should we get from fat?
Red meat is not ideal, and, for LCHF, fatty meat or oily fish has benefits - and organ meat is, I think underrated - ask an Eskimo (Inuit).
A vegan diet can work if you make sure that you get enough of all the essential nutrients.