Well he’s right, in a sense.
Domestication is in essence “inventing” a new form of a previously wild species. Today’s modern dairy cow is very much an invented animal.
Today’s modern corn, for instance, would never have existed without human interaction. All of the breeds of dogs we have are another.
“A cow is a biological machine invented by humans to turn grass into steak. “
And isnt this meant to be tongue-in-cheek? It sounds like something many people here would say as a joke.
We changed and bred them for certain traits ti increase what we could always get from the animal. We never “invented” any animal.