There are many other recent instances of ethnic cleansing that nobody seems to care about. The number of ethnic Germans who were permanently expelled from their homes in Europe and the USSR (at about the same time as Palestinians) exceeds the number of Palestinian refugees by more than an order of magnitude (10-12M, with at least 500K dead), making it the largest ethnic cleansing in modern history, but this episode is basically forgotten (presumably because sympathy for Germans was rather scarce after WW2). The hundreds of thousands of Turks and Greeks who were mutually expelled from their homes after WW2 will never get to return either. Nor will all the ethnic minorities in the former Yugoslavia who were "cleansed" from their historic homelands. So my question is, given that ethnic cleansings are not uncommon in the recent past, and that the Palestinian Nakba is not even close to the worst case, why is it basically the only one that anyone seems to care about?