are English people pure Anglo-Saxon ?

[Smaug]

Of course not.

[drb234]

Yes

[Sheppey]

Some probably are but most probably aren't it seems to me to be that simple , really.

^ bump there are no 'English' genetics just an admixture that can more represent a mean or average but there is actually a relatively widespread range on a PCA but being English is also a culture.