Recommend you hit the local community college and take biology 101 Sir. Cancer cells are fueled by exactly the same thing as every other cell in your body: glucose converted to ATP. Carnivore or Vegan, every process in your body is powered by ATP and your amazing body can handle both extreme diets amazingly well.
The rabbit hole of cancer as a metabolic disease is a dark one for many (since nearly all of us have had family/friends diagnosed or killed by it), but this info MUST be spread.
Cancer is NOT genetic. It's metabolic, i.e. highly-correlated to what you eat.
Cancer cells' fuel is glucose & glutamine, AKA sugar & carbs. If you eliminate these, it's practically impossible to get cancer (or any other notable progressive disease for that matter)
This is why you won't find a carnivore with cancer. They don't eat any of that carb-loaded crap, so cancer cells have no fuel. (Cancer wasn't even A THING pre-10K years ago, before the agricultural revolution began, and humans just ate meat)
And for those who know someone who already has it:
Tons of cases of people with a cancer diagnosis taking the dive down the nutrition rabbit hole, realizing plants are the problem, eliminating them, and completely turning their trajectory around.
Links to learn more (tl;dr: make Dr. Thomas Seyfried and Dr. Anthony Chaffee your new best friends) 👇
https://youtu.be/EzmC_zfYRho?si=np4ErvUaC0qZaMFw
Discussion
All carbohydrates convert into sugar (glucose) in the bloodstream, friend 😉
So no - the human body most certainly does not handle a high-carb diet well, especially not in the case of cancer.