I understood there to be a problem with antisemitism in the Labour party, but it really bright home to me just how institutionalised and acceptable this has been allowed to become.
It's pretty clear Corbyn doesn't care enough about antisemitism to take any meaningful action or check how his behaviour and views might have contributed to this situation.
And the statements put out by the Labour Party HQ pretty much dismissing everything as anti-Corbyn conspiracy, while wheeling out some gormless and confused shadow junior minister, were unforgivable.
I'm pretty sympathetic to the ideals of the Labour movement, but couldn't in all good conscience lend my vote to a party with a leadership that's let this happen.