Since Mark Levin is attending, where does that leave him? Has he decided not to attend because the JBS is a sponsor?
You seem to misunderstand my description of the Birch Society. I said they are the "blue lodge" of the anti-Semitic movement in this country, and this means they cannot themselves officially promote anti-Semitism, though they certainly promote it unofficially.
There are many Jewish members of the Birch Society. However, in my personal opinion they are "window dressing." How they can belong to such an organization is beyond me, but that is their decision.
The fact that Jewish Birchers are pro-Israel does not change the fact that the non-Jewish members are very anti-Israel, and the non-Jewish Birchers run the Society.