I wouldn’t agree with that characterization. It is sloppy, and it’s possible it could be malicious. Personally, I view individual Vatican statements as largely irrelevant politically, though they can be opinion shaping. I do think the Vatican practices moral equivalency with regard to the conflict, an ongoing dispute between the Vatican and Israel which I’m not all that interested in getting into on this thread, but I don’t think that’s based on any historical toward Jews, rather an institutional bias against Israel, a state in an area they’d like to influence with which they’ve had choppy diplomatic relations.
Personally I wouldn’t characterize Horowitz or Frontpage as anti-Catholic based on that blog entry, but I admit I don’t consider Hillary an anti-semite either.
A reasonable assessment - your reference to the Vatican being frustrated by its inability to exert geopolitical influence in favor of the Catholic communities in Israel, Lebanon and Syria is insightful.