What is so unnatural about cooking? isn't fire natural? is it because animals don't cook? they don't talk and write either, but not for this we think we should stop doing so. I agree we can do it less.
I believe men are unnatural by definition, and it is not eating raw that will make them have their Eden back (I also believe we can have our Eden back here now, but I haven't found the solution of the enigma yet)(but sure it isn't such a garrulous thing as eating raw)