Re 194:
The United Nations first took up the refugee issue and adopted Resolution 194 on December 11, 1948. This called upon the Arab states and Israel to resolve all outstanding issues through negotiations either directly, or with the help of the Palestine Conciliation Commission established by this resolution. Furthermore, Point 11 resolves:
that refugees wishing to return to their homes and live at peace with their neighbors should be permitted to do so at the earliest practicable date, and that compensation should be paid for property of those choosing not to return and for loss of or damage to property which under principles of international law or in equity should be made good by Governments or authorities responsible. Instructs the Conciliation Commission to facilitate the repatriation, resettlement and economic and social rehabilitation of refugees and payment of compensation... (emphasis added).
The emphasized words demonstrate that the UN recognized that Israel could not be expected to repatriate a hostile population that might endanger its security. The solution to the problem, like all previous refugee problems, would require at least some Palestinians to be resettled in Arab lands.
No peace treaty, no return.