It's a word used to demonize people doing normal human things like consuming things in excess.

Carbohydrates are a regular source of energy in food that nearly every unicellular and multicellular form of life utilizes, and are evolutionarily ancient. Everything you eat, must be processed and dealt with, and that takes vitamins. Carbohydrates need to be balanced with other nutrients like all nutrients.

https://www.ncbi.nlm.nih.gov/books/NBK9841/

All cells use adenosine 5′-triphosphate (ATP) as their source of metabolic energy to drive the synthesis of cell constituents and carry out other energy-requiring activities, such as movement (e.g., muscle contraction). The mechanisms used by cells for the generation of ATP are thought to have evolved in three stages, corresponding to the evolution of glycolysis, photosynthesis, and oxidative metabolism (Figure 1.5). The development of these metabolic pathways changed Earth's atmosphere, thereby altering the course of further evolution.

In the initially anaerobic atmosphere of Earth, the first energy-generating reactions presumably involved the breakdown of organic molecules in the absence of oxygen. These reactions are likely to have been a form of present-day glycolysis—the anaerobic breakdown of glucose to lactic acid, with the net energy gain of two molecules of ATP.

Fats need to be balanced.

"Meat" - no, not all meat is the same meat. It's regularly an issue with people feeding their pets a raw diet - they only use muscle meat and no organ meat and the pet becomes malnourished.

Are you eating thyroid? Thymus? Liver? Heart? Testicles? Ovaries? Brains? These all have different nutrients and hormones in them and we still make medicine today from some of these parts.

Meat does not have enough vitamin e or vitamin k unless you eat liver, but it also has vitamin a and each liver can have varying amounts of what vitamins are stored in it. Vitamin C is also lacking in an all meat diet devoid of organ meats.

I know weightlifters who are in their 60s regularly macrodosing vitamin e and vitamin c for this reason and they've won competitions in their younger years and had very few serious injuries compared to others. I'm gunna say these vitamins are necessary and your "meat" argument is lacking.