it's basically on the same level as "Stonehenge has been subject to academic debate, such as whether it was actually created by an all-wombxn coven that covered all of Europe and reproduced by cloning, until the Indo-Europeans arrived in 2000-1600 BC and forcibly introduced them to thick, throbbing PIV"

also this is dogma among a handful of academics (not ones with any knowledge of Europe, mind you)