Interesting observation.
Basically the Iraq war united left and right wing Catholics in opposition because both left and right wing Catholicism are anti-Zionist (since the existence of a restored sovereign Jewish state in the Holy Land disproves the Church's claim to being the "new Israel"). It's the exact same reason that Buchanan, Sobran, Reese, et al, are lined up behind Yasser Arafat, Ramsey Clark, Ralph Nader, Gore Vidal, and the Workers World Party.
It's really a tragedy that in the face of this alliance of evil most Jews are still hyperventilating over pro-Israel Fundamentalist Protestants whose support embarrasses them and threatens their self-image as a nation of irreverent Weimar-style world-weary sophisticates.
`Od Yehoshu`a Bin Nun chai!!!