Not really sure what you mean by "not believing in yhe withering away narrative." The basis of the state, ie the political structures for ensuring the supremacy of a given class, is the class struggle. States arose when classes arose, not the other way around. Once a worker state has collectivized all production and distribution, the class struggle gradually dies away, and with it special political mechanisms for ensuring worker supremacy. All that remains is administration and management in a classless society, stateless and all.

Either way, as much as I personally align more with groups like the Popular Front for the Liberation of Palestine, I understand that they are a minority faction. Palestine's path to social progress can only truly become unfetteted when it is liberated from genocide. Palestinians by and large are not protesting Hamas, and the Resistance is largely unified at this present moment against a common enemy.

In that sense, I agree, as activists and organizers outside of Palestine, it's on us to focus on our own governments for supporting Israel's settler-colonial project and genocide. The reaction to Israel is created by Israel's own oppression, this is straight from Fanon's analysis of nationalist resistance to colonialism. The people of Palestine have chosen the unified resistance, with Hamas as the largest faction, to break free of their chains. Any movement towards socialism will come after breaking free of Israel.