Steve
Well if you agree that what he said can't have been antisemitic, do you agree that he should not have been "charged with antisemitism?

If that had been all he said, yes.
It was not. He tried to use that to defend Shah's undisputed (except by you people) anti-Semitism.
His defence of anti-Semitism brought the party into disrepute. The party found him guilty.

Naz Shah, much to her discredit, grovelled in order to save her own skin. Tell me exactly what she said that you regard as anti-Semitic

We all know what she said.
The party found it anti-Semitic. That is good enough for me. You did not. That signifies nothing!