Something which threw me off re: the accusations of antisemitism against Corbyn personally was a comment from an editor for The Jewish Chronicle where he claimed that Corbyn's referring to bankers crashing the economy in '08 and being bailed out was antisemitic then when a few people responded negatively he said that fair enough, it probably wasn't but you can't blame him for thinking that because Corbyn's an antisemite.
It just seemed hysterical and looked as though he'd basically set up a position where even if what he highlighted as an example of Corbyn's antisemitism was debunked, it didn't matter because it was obvious that he was antisemitic anyway.