And because Israel is part of the Western imperium, as well as a key target for Islamists, it is also enemy number one for progressives. So an obsessive preoccupation with the Jewish state becomes the default position of the Left. China, Zimbabwe, Saudi Arabia – pah! The focus must be on Israel and Israel alone. From that springs an entire worldview that encompasses "Zionist" control of the media, of business, of everything. And we can't be accused of targeting Jews because we don't use the word. We say Zionist, not Jew.

So deep does this warping of what it means to be Left and progressive now run that it is almost prosaic to assert Zionist control. But now, to cap it, we have a Labour leader whose entire political career has been in this milieu – feeding it, growing it and pushing it.

For months now, week by week, examples have been emerging of cut and dried anti-Semitism – most dressed up, oh so cleverly, as anti-Zionism, but much not even bothering to hide it. And the Labour leader's response to the criticism that he is soft on anti-Semitism and that it's his political mindset that has fuelled its rise is not to get hard on anti-Semitism. It's to get irritated.

The Left's hatred of Jews chills me to the bone