What reasons did they give for that position? I see no evidence that Jewish people would be discriminated against under a labour government. Maybe you can change my mind with examples of discrimation currently taking place within the party.
Can't help but feel that if it was any other group in society the same people latching onto this would be condemning them for being 'anti-british' or something equally ridiculous and that hypocrisy for party political reasons is rotten.