> A Jew from Yemen has nothing else in common with a Jew from Poland
Except for the genetics we share, distinct from non-Jews, statistically significantly.
I recommend reading "Legacy: A Genetic History of the Jewish People" by Harry Ostrer.
We really are the people of the book, aren't we?
Not a great example. In the orthodox community it is very common to intermarry between religious Sephardi and Ashkenazi jews.
> A Jew from Yemen has nothing else in common with a Jew from Poland
1) They descended from the same people 2) If they are religious, they have a tremendous amount in common
I recommend reading The Invention of the Jewish People, by Shlomo Sand.
As a practical example. When my father (Ashkenazi) married my mother (Sephardic), my father's grandma was devastated, because he was marrying a non-jew.