The dictionary defines a refugee as a person who was forced to leave their country in order to escape war, persecution or natural disaster. The legal definition of a refugee says nothing about the descendants of refugees. UNRWA which is an official UN body that represents the palestinians defines a refugee as somebody whose home was Palestine between June 1946-1948. There are no obligations for Israel to grant a right of return under international law because UN General Assembly resolution 194 which calls for right of return was made by the General Assembly rather than the Security Council so its nothing more than a glorified proposal to accept or reject. In the Israeli political system other than the arab parties, even the far left parties are not supporters of right of return, that is about 10 out of 120 Knesset seats and even the bulk of secular Israeli's are against the right of return idea. No US or western European government would even dare propose a right of return even if they support it because they have to much to loose politically. Other than Israel itself every single western government US included don't want a 2 state solution they want a single binational state to replace Israel but nobody would ever dare suggest it which is why everybody rabbits on about the 2 state solution. Morals, human rights etc are great when they come from an individual but at a political one nobody is interested. For sure it is very unlikely there will be peace with or without a palestinian state without agreeing to right of return but thats a red line no Israeli politician will ever cross. So forget you ideas on morals and human rights because it aint gonna happen.
Iran's Parliament speaker says he supports nuclear deal (AP)
from the article: Palestinian refugees are a threat to Israel's existence