So where is the zionist "left" on all this?

Ilan Pappe in Electronic Intifada puts the question. well he doesn't really. He simply draws attention to the fact that the zionist left is with the Israeli government on this:

Alternative routes for the conflict are not even raised in Israel, not even by the Zionist left. No one mentions commonsensical ideas such as an exchange of prisoners or a commencement of a dialogue with the Hamas and other Palestinian groups at least over a long ceasefire to prepare the ground for more meaningful political negotiations in the future. This alternative way forward is already backed by all the Arab countries, but alas only by them. In Washington, Donald Ramsfeld may have lost some of his deputies in the Defense Department, but he is still the Secretary. For him, the total destruction of the Hamas and Hizballah – whatever the price and if it is without loss of American life – will ‘vindicate’ the raison d’être for the Third World Theory he propagated early on in 2001. The current crisis for him is a righteous battle against a small axis of evil – away from the quagmire of Iraq and a precursor for the so far unattained goals in the ‘war against terror’ – Syria and Iran. If indeed to a certain extent the Empire was serving the proxy in Iraq, the full fledged support President Bush gave to the recent Israeli aggression in Gaza and Lebanon, shows that may be pay off time has come: now the proxy should salvage the entangled Empire.

So where is the zionist "left" on this?