Jewish newspapers unite against Labour 'threat' per BBC News

This BBC report https://www.bbc.co.uk/news/uk-politics-44957906 behind thus:

'The UK's three main Jewish newspapers have published the same front page, warning that a Jeremy Corbyn-led government would pose an "existential threat to Jewish life".

The Jewish Chronicle,Jewish News and Jewish Telegraph move comes amid anger over Labour's anti-Semitism code.

They say the party must sign up to the International Holocaust Remembrance Alliance's definition of anti-Semitism.

Labour says its version "expands on and contextualises" the IHRA definition.

The party added the security and wellbeing of Jewish people was a priority and a Labour government would pose "no threat of any kind" to Jewish people.'

Has any Labour Party spokesperson, or preferable the Labour Party leader Jeremy' friend of Hamas and Hezbollah' explained how the Labour Party version is more expansive than the IHRA definition? 

Clearly the Labour Party do give a priority to the security and wellbeing of the Jewish people, a low priority.