Do you think the parallel can be drawn with, say, Eritrea and Sudan? I'm less sure of the situation now, but when I lived in Eritrea there were hundreds of thousands of Eritrean refugees living over the Sudanese border in squalid camps. They, too, had been there for decades, in penury, and with little hope of return. The Sudanese government had not granted them citizenship (a poisoned chalice anyway, I would say) or extended much in the way of hospitality towards them. Would you say that this was Sudan's fault, or more the fault of the brutal Mengistu regime in Ethiopia which, through widespread war crimes and the brutalisation of the Eritrean populace, had created the refugee situation in the first place?
I agree that all players have some degree of responsibility for what is going on in the Occupied Territories ATM. I would, however, suggest that the burden of responsibility for the shit that's going down there lies with the country that has brutally and illegally occupied the land in question for decades, and the country that provides it with billions of dollars per year to continue that occupation, as well as the fig leaf of the veto on the UN security council to ensure that no binding resolutions on the conflict can or ever will be passed.