As one of my correspondents writes, identifying anti-Semitism in the anti-Israel arguments won't faze the anti-Semites--but it might make those who are NOT already hopelessly biased against Israel stop and think.
One formulation of this is the concept of "different rules for Israel".
All states are entitled to take military action to defend their citizens--except for Israel
All states are entitled to decide who may enter their country--except for Israel
All states are entited to decide who may become citizens of their country--except for Israel
All states can be members of a regional group in the UN--except for Israel
UN Charter Article 2 par 4 states: "All Members shall refrain in their international relations from the threat or use of force against the territorial integrity or political independence of any state, or in any other manner inconsistent with the Purposes of the United Nations"
(unless, of course, that state threatened is Israel)
Foreign-funded NGO's that seek to undermine a country's very existence aren't
entitled to act within that country-- except for Israel.
The list can (unfortunately) go on and on.