Much like that UN report classifying Israel's action against Palestinians as Apartheid (which is criminal in international law), much will be said and very little will be done about this. The state of Israel has been going against international law and agreements for almost its entire existence: see its support for illegal colonies and the walling and ghettoization of the West Bank and Gaza. Israel's government has confidence that the US and NATO won't do anything to stop their criminal actions against Palestinians because that is what they've been doing for the last half century. They will continue to coddle Israel until it fulfills its goal of completely exterminating or expelling Palestinians from the land between the river and the sea, forging a state with a single ethnicity, culture and religion out of Palestine.

PS: just before anyone claims it: no, I do not support gratuitous acts of terrorism by Hamas, just as I don't support Israel's terrorism against Palestinians. All I'm trying to do is point out the historical context of the current conflict, so that nothing is distorted.

Blocking neccesities for civiliana like water is a war crime. Encircling enemy state after it lanched offensive to yours is not, otherwise e.g. allies pushing Nazis all the way back to Berlin was also crime.