[yyyk]

>his positions[2] do not seem at odds with the gist of Chomsky's quote though

I would like to differ slightly. Chomsky has it that Eban wants to tar criticism of Israeli policy as antisemitic* - which leads to the 'oh well, they just accused Corbyn of antisemitism because of his Israel position' argument you see in the comments.

Eban wants to argue against a specific ideological position which at least is aimed at completely modifying the Israeli state (not 'policy criticism') and he has his argument for it - an argument we can safely say Israel has lost in the West. People may defend Israel, but they usually do not consider their opponent antisemitic per se.

* There's also the 'neurotic self-hatred' part, where Eban supposedly is naming Chomsky specifically, but I think we can safely discard that.