"... such marriages dilute the Jewish gene pool ...." Imagine if I were to say in the same context that marriages between Anglo-Saxons and Jews "dilute the Anglo-Saxon gene pool." I'd be painted a racist and rightly so.
You see, this is EXACTLY what's wrong with right-wing Zionism and why being against that right-wing Zionism is NOT anti-Semitic but anti-racism. Therefore, the "new" definition of anti-Semitism that claims being against the policies and practices of the Likud is anti-Semitic can go back to Hell where it came from.
Did somebody say, "BDS"?