If that's legitimate, then we might also say that the diet of the ancient insectivorous primates could be just as relevant. Outdated toothwear studies often cited. Also see Sillen et al. Instead, they included some very tough plant foods. Our prehistoric ancestors could not eat meat prior to the advent of tools.
Chimpanzees kill and eat small animals without tools.
If chimpanzees can kill small prey without tools via flailing, humans are certainly capable of the same. This bizarre fantasy is interpreted to mean that humans should limit their diets to soft fruits, leaves, and occasional seeds or nuts. See the article, Selected Myths of Raw Foods, for further discussion of this, which includes a list of animal foods that meet the stated collection requirements . This indicates the question is of limited relevance. Eating meat is a perversion and UNnatural, but it does not affect reproduction.