Žižek's Impossible Realism

Slavoj Žižek on Israel's wars on its neighbors:

Let's try a mental experiment and imagine that, instead of Lebanese women and children, the human shields used by Hezbollah were Israeli women and children. Would the IDF still consider the price affordable and continue the bombing? If the answer is "no," then the IDF is effectively practicing racism, determining that Jewish life has more value than Arab life.
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The problem courted by Israel in its continuous display of power is that this display will be soon perceived as a sign of its opposite, of impotence. This paradox of power is known to anyone who has had to play the role of paternal authority: In order to retain its force, power has to remain virtual, a threat of power.
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It is those who evoke the Holocaust who effectively manipulate it, making it an instrument for today's political uses. The very need to evoke the Holocaust in defense of Israel's actions implies that its crimes are so horrible that only the absolute trump-card of the Holocaust can redeem them.