crossnote said:
Let's go back to the Holocaust. You seem to be saying there is no way to tell if those millions that were targeted as Jews were in fact Jews whereas most everyone except antisemites affirm they were Jews. You don't affirm that those marked as Jews by the Nazis were actually Jews?
Personally, I think people know whether or not they were Jewish because such a pedigree is passed down by word-of-mouth through families - not to mention DNA testing that confirms the relation among people that claim to be Jewish. In any case, appealing to Nazi methodology not only begs the question, but it's rather dubious to rely on their "research" to make one's case.