I have to admit that you present a powerful argument, Schmoozer. Still, things are not as simple as you present them to be. Both Lewinsky and Mezvinsky are "old US Jews", coming from families which must have lived in the US for many years. They are not "recent Jews" coming from Russia and from families who are Soviet "educated". So even though the association may give Clinton the "right" to make comments on Jews, he lacks the expertise(!) to do so on this subject.
Hundreds protest by Tel Aviv club where 'rape video' was filmed calling for club's closure (Haaretz)