Rabbi David Teutsch, who shares the co-chairmanship with me and Rabbi Andrea London of the J Street Rabbinic and Cantorial Cabinet, has written an authoritative piece that will appear in the Times of Israel detailing how the extreme right-wing is the greatest anti-Semitic threat and NOT the extreme left wing. Though there are concerns about a growing anti-Israel sentiment on the left, these people are not violent. The right wing is.
David shows us why and is to be complemented.
http://evolve.reconstructingjudaism.org/dangers-antisemitism