Lefties are the same everywhere.
Rather disingenuous of Cameron, since historically it’s his party (the Conservatives) which have always had a much greater problem with antisemitism than Labour. Jews have been prominent in Labour throughout its history (indeed the last party leader was a Jew), and Labour when in office has always been much more supportive of Israel than have the tories. There does seem to be a problem at the moment with some activists in the Momentum movement, which has sprung up as a pressure group within Labour since Corbyn’s election: but it’s not typical of the party’s history.