Statements like "Humans naturally consume animal protein out of biological necessity. This has only changed for people who have the necessary resources to follow incredibly regimented and expensive vegan diets." as a justification for eating >100kg of meat a year require sourcing when india and china exist. Even extant hunter gatherer societies from warm areas rarely derive more than half of their calories from meat.

Well, sure, the other commenter should reference as well, but this is whataboutism. Another commenter not using a source does not exclude you from providing evidence for your claims.

Please provide evidence that less than half of caloric intake for hunter gatherers came from meat instead of making additional claims without reference.