you don'nt have a problem with 3 thousand years old political entities making demands in the 21C. what would the world be like everyone wanted to return to their ancestral land, not a very good recipe for order is it. start from basic principals of human rights. If Jews have a right to return after being exiled for milleniums Palestines have a right to return followign 50 years of exile.
Three Palestinian teens killed by Israeli army fire during protests near Gaza border (Haaretz)
from the article: Norman Finkelstein bids farewell to Israel bashing