No Saxon invasion?

[authun]

I'm not sure if you understand my objection. I don't think there's such thing as "yDNA implying a Jutish origin", because there's no "Jutish yDNA".

That's right but remember who the example is aimed at; someone who associates ethnicity with the DNA. Unless you want to enter into a is/isn't argument, it's better to explain the flaw in his own argument. By initially accepting the proposition, it is eventually disproven by following its implications logically to an absurd consequence, commonly known as reductio ad absurdum.

You may understand the difference between 'yDNA implying a Jutish origin' and 'yDNA implying an origin in Jutland', but the distinction is not immediately obvious to everyone and sometimes preconceived notions have to broken down before corrections will be accepted.

authun