There are too many misunderstandings in this thread to respond to them all and I don't want to get into a lengthy debate and I'm sensing an undercurrent of hostility and dismissiveness (I hope wrongly), so I'll try to summarize with a brief reply. I'd like to encourage peace and harmony between those following omnivore and carnivore diets. I hope we can disagree without becoming disagreeable.
I don't know whether humans are better classified as omnivores or facultative carnivores or a mixture. I don't think it's particularly critical as regards people's diets anyway, since there is no distinct scientific dividing line between facultative carnivore and omnivore, so the differences are more of degree than of kind. There are good arguments on both sides. Those who think that the case for omnivore is open-and-shut might be surprised by some of the evidence on the other side, such as Voegtlin's comparative anatomy table and what I've written in other threads about Giant Pandas and tarsiers. I don't detect any interest in this evidence, though, so it's probably better that we just agree to disagree about whether the question is settled.
Of the diets I've tried so far, I fare best on a VLC diet that includes a small amount of animal carbs from liver and eggs. For whatever reason, I don't seem to fare well on any plant carbs. I do include a small amount anyway and try to minimize the damage, because I enjoy them, so I hope that those who say that some day I'll be able to eat plant carbs without negative effects are correct. Unfortunately, it hasn't happened yet.
I don't do high-fat VLC because I want to, I do it because it's all that has worked for me so far. I don't understand why this seems to trouble some non-vegan folks (I understand why a carnivorous diet would upset those vegans who regard all meat-eating as evil). If the diets that you folks advocate worked for me, believe me I would switch to them in a minute. I have no dogmatic allegiance to the foods I'm currently eating. I'm happy for you folks that you've found something that works for you and I have zero interest in convincing you to do anything different.
I hope this helps put folks more at ease.
Peace,
Phil