It's entirely possible that Corbyn isn't an anti-semite or doesn't consider himself one. But his associations and tolerance of them - including his own brother - clearly shows that he doesn't mind them much.
As Edmund Burke said: "The only thing necessary for the triumph of evil is for good men to do nothing."
Though, in this case, Corbyn is far from a good man.
What Edmund Burke actually said was "The only thing necessary for a quote to be falsely attributed is for it to be put in the mouths of someone who too few people actually read."
