Every Arab I've spoken with on the topic, states that Israel should have hit Gaza harder and sooner. That's from Arabs in the south (Bedouins) and along the coastal plain and Haifa ('48ers). The Israeli Arabs are more extreme in their viewpoint towards Gaza (not only Hamas) than are the Jewish Israelis.
The Arabs are not coy - they tell it exactly as it is. I'll be speaking to someone in what I perceive a pleasant conversation, and he'll mention something that I'll realise this guy would murder me under slightly different circumstances - while being hospitable. Their culture is not easy for us to comprehend.
Arab society has power struggles as a feature. There is always punching and slapping between family members, and there are always fueds with other extended families. For example, if one wants to find a wife or a job, his family needs honour. So he or his brothers go out and shoot up another family's complex. They are not trying to kill anybody, there are huge consequences if somebody dies. But they do some damage to display that they are an honourable (I guess tough) family, and now the younger family member can find a job or a wife. And this is how, they say, Israel should handle Gaza. When Gaza tries to gain honour in the eyes of their society, they need to be put back in place in a way that they understand culturally. Otherwise Israel will be the family that everybody shoots at.