Jeremy Corbyn and the Labour party share the view that language or behaviour that displays hatred towards Jews is antisemitism

Jeremy Corbyn and the Labour party have adopted the IHRA definition of anti-Semitism, see: IHRA Working Definition of Anti-Semitism which is considerably broader than what you are trying to disingenuously portray, see: New Anti-Semitism from which I offer this excerpt for your edification:

New antisemitism is the concept that a new form of antisemitism has developed in the late 20th and early 21st centuries, emanating simultaneously from the far left, Islamism, and the far right, and that it tends to manifest itself as opposition to Zionism and the State of Israel. The concept generally posits that much of what is purported to be criticism of Israel by various individuals and world bodies, is, in fact, tantamount to demonization, and that, together with an alleged international resurgence of attacks on Jews and Jewish symbols, and an increased acceptance of antisemitic beliefs in public discourse, such demonization represents an evolution in the appearance of antisemitic beliefs.

But do go on pretending, it serves as a perfect example of the definition.