Beppe, Robert Graves made stuff up.
Large female figurines, such as those at Catal Hoyuk, have been taken as proof of the longevity of the Mother Goddess. But the people who are closest to those figurines no longer believe that they represent a deity, or that they were objects of worship. You can't get there from here (unless you want to believe that Robert Crumb is her most recent secret priest).
P.S. I *always* read the manual.