Don't you find it at least interesting that as humans gave up their paleolithic diet, their civilization became much more complex? First agriculture, then architecture, the making of clay pots (which were used for, not only cooking and storing food, but chamber pots), writing, mathematics, and indoor plumbing?
In contrast, hunters and gatherers lived in huts, where the chief occupation of the males was killing each other and stealing each other's women, and the chief occupation of women, when they weren't busy being stolen, was frantically attempting to gather as many roots and berries and insects and baby birds as they could so everybody wouldn't starve to death?
The image of "man the mighty hunter" is belied by dietary studies of hunter-gatherer cultures throughout the world. Men brought home the wild meat from time to time but women brought home the calories, protein, carbohydrates, fat, every day.
And, people could only build civilizations once they stayed in one spot--agriculture allowed them just that.