Depends on WHO you refer to as humanity. For me, humanity started at the Point, where we could create larger societies than Just Tribes of people, which all other Hominids have also in Common. If you refer to all Hominid Species Lifeforms (past and present), your Point may stand. But AS i Said before, neanderthal peoples also knew how to make fire, Same woth many other Hominid Species, that went extinct, as they were driven into a evolutionary Corner Not adapting to the Changes in environments and neighborhood Relations with the modern Human (Homo Sapiens). And yes, i know this Species is 300k years existent, much longer than agricultural Farming.

Alas i am Not a Scientist, but the notion of the Shitpost, that we must eat meat is ridiculus, as our Species was always an omnivore, allowing us to adapt better to the environmental Changes in the begining. This is Not, what differentiates us from other homidae.If you Just say, fire is what differentiates US, you cold also say, the ?dexterus? thumbs is the deciding factor. Other Species Had that too, its Not our Unique elling Point 😉