Gentically? What, is there a Jew gene that was recently discovered? Ethnicity is language, culture, individual and group identification, it is not race, which is an entirely different topic. There's no such thing as one Jewish ethnic group. There are at least six different Jewish ethnic groups: East European, Chinese, Middle Eastern, Spanish and Portuguese, North American, and Ethiopian. There's absolutely no physical similarity between Chinese, Spanish and Ethiopian Jews. So where's the Jewish genetic makeup among these different people? Judaism is a complex religion and culture that's followed by people from very different groups. If someone decides to change that religion and culture they can.
If a German moves to the US, becomes a US citizen, lives here, and sees himself as an American, he is an American.
regnav,
I find your threat out of place in this board. Can you not discuss something without threatening violence?
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"Get yourself a Lorcin and lose that nickel plated sissy pistol."