I feel that there's something humiliating for all Jews about the trashing of Rabbi Sacks.
I thought of starting with some left-cred throat-clearing about ways in which I'm critical of him. But I'm done with that nowadays.
On the issue of Corbyn and antisemitism he speaks for Jews; except for the tiny minority who are prepared, under antisemitic duress, to declare their disavowal of Israel and Zionism and hence escape the hostile and external designation of "Zionist" - meaning racist, pro-apartheid etc.
Some will say that he exaggerated a bit and others will say he wasn't tactically astute. Actually I don't agree with either of these criticisms but, I don't think they matter. If he had expressed himself more conservatively it would have changed nothing.