The fact that more Palestinian civilians than Israeli ones are killed is due more to the inefficiency of Hamas than any other factor. One has to wonder at the stubborness of a group that knows they don't have the power to beat (or even seriously hurt) their enemy without being hurt many times more seriously themselves. In most cases this would be considered stupidity in Western minds, but in the minds of Hamas, it is a unifying factor, deflecting the public's attention away from their own misgovernment to blame everything on an external enemy instead of taking responsibility for their own actions. In the Arab mind, taking responsibility for bad government is traditionally a death sentence, and no matter how much they claim that "Palestine is a culture of death" and that "We love death like the Jews love life", the leaders have no desire themselves to die.
10 arrested at Israeli Arab protest in Ramle (Haaretz)
from the article: Israel's right to self-defense against Hamas