" a table setup and manned by Lane County Democrats who attend the U/O." 
Nonsense.
You are referring to the al Nakba project which has a table on the sidewalk near  the Saturday Market .
It has absolutely nothing to  do with the UO.
It has absolutely nothing to do with Lane County Democrats.
The activists  would be considered quite far Left rather  than "liberal", and many Eugene liberals would consider their position extreme.
Rather than being actually anti-Semitic, it is critical of the state of Israel's long occupation of the Palestinians, and sympathetic to the hopes of the Palestinians for a  decent piece of  land for a homeland.  In general, this is a position shared by many people and governments around the world.  I myself have long supported a two state solution and have high  a respect for the rights of both Jews and Arabs.
Eugene's major organized  anti-Semitism  was  from Orval Etter's Holocaust-denying Pacifica Forum which UO liberals were finally  able to shut down.