That's what the others here are expecting Israel to do.
No it isn't. The supporters of the humanitarian effort see Israel's blockade for what it is, collective punishment. It doesn't matter that Hamas is in charge. For them, this was a humanist thing to do because the people of Gaza are suffering. The reasons Israel is punishing them is three-fold:
1) The captured Israeli soldier
2) A hostile Hamas in power
3) The firing of Qassam rockets by other militant groups.
Israel believes that collective punishment will make Gazans rebel against Hamas and choose Fatah. It won't happen because Fatah looks like Israel's pet at the moment. Also, collective punishment is illegal.