Archdruid McGrath in Studio

Recent in-depth mass scientific population analysis throughout Ireland and Britain prove that the Irish/British peoples are not Celtic.
The Celts never came to Ireland or Britain in numbers. There was never a Celtic invasion of Ireland.
Such in-depth scientific studies prove that the vast majority of the present Irish descend directly from the "pre-Celtic" inhabitants of Ireland. Similarly in the case of Britain.
So we descend directly from the pre-Celtic peoples who built Newgrange and Stonehenge, Great News ! And this is almost incontrovertible evidence that the Druids originated in Ireland, Britain too.
No other Druid Order or group in the world today has ever realised or known this - and they still live inside The Celtic Myth. Several years ago the Archdruid of Ireland announced this , but his was a voice lost amid a world scenario of "Celtic" and "Druidic" book writers, making a lot of money, and therefore, understandably, they didn't want to know.
There is an Irish "Celtic" "Druidic" website that proposes to make you a Druid, for a fat fee. Every second word on that site is "Celtic", it's Celtic this and Celtic that, even "our Own Celtic Irish language" is used to impress you, to part you from your money for reams of useless printed paper.
Now I am fluent in the Irish language, so I'd love to know what this "Celtic Irish Language" is - just in case I missed something ?