Crownvirus psychosis
When you begin noticing that there's nothing but Latin, Germanic, and Mediterranean lineages within your Celtic family tree and the men are not having their own lineages, however they're producing daughters or no children at all, and the women are outliving the men...
The soon to be mental patient has the Crownvirus psychosis reoccurring syndrome and will need to be transported to the nearest 72 hour concentration camp immediately at the tax payers expense.