How ridiculous. You have elevated raw meat to a fetish. Just because pre-agricultural people consumed meat does not mean this is natural or healthy, it just means that when people have inefficient ways of gathering food they are able to adapt to whatever environment they find themselves in - this in no way means that those adaptations reflect the human bodies ideal conditions.
Evolution builds us to survive in harsh conditions, but that doesn't mean that we thrive best in those conditions: we thrive best when we can cultivate optimal health.
For that, we need a vegan diet based around micronutrient rich vegetables. Vegans live much longer and have fewer health problems than meat eaters (and vegetarians).
Whether meat is cooked or raw, it is is still nutritionally inferior to high micronutrient plants - it still has cholesterol and saturated fat (as do unhealthy vegetarian diets).
As for raw vs cooked - this is a gross simplification. How you cook (fried vs steamed) makes a profound difference on the food, and theres nothing wrong with steaming vegetables.
Raw meat is also just plain disgusting. The physical revulsion we have at it (or at least those of us who don't have a blood lust raw meat fetish) may like many visceral reactions be an adaptive response to show that its not a good idea to eat. Native Americans cook food too - with good reason - raw meat is disgusting.