If you are saying that you too were on a carnivore diet long term (5+ years) and very possibly experienced "the worst possible outcome" related to cholesterol levels, you would be the first person to report as such. Perhaps you would like to publish the anecdote in detail somewhere (including just exactly what you ate, as "a high cholesterol diet" is imprecise enough to mean many things)?
Without going into details here, very possibly the worst possible outcome ensued.
Don’t eat a high cholesterol diet. Really. It’s really bad for you, like kill you dead bad for you.
There isn’t some global vegetable conspiracy that invented atherosclerosis. It’s like the #1 or #2 killer alongside cancer.