Not even reasonable to say we're even discussing the same people given the descendants of the people who lived under Roman rule are more indirectly attested to

Not even reasonable to say we're even discussing the same people given the descendants of the people who lived under Roman rule are more indirectly attested to by way of the Welsh, which was the last bastion of Celtic autonomy south of Hadrian's Wall. The modern Englishman is not really related to those Celtic people but is a descendant of the Anglo-Saxon invaders mentioned in the article.