These paragraphs are just two of the many which help us to understand what happened in those turbulent days following WWII:
During the 1948 war and for many years afterward, the Western world—including the international Left—expressed hardly any moral outrage about the Palestinian refugees. This had nothing to do with Western racism or colonialism and much to do with recent history. The fighting in Palestine had broken out only two years after the end of the costliest military conflict ever, in which the victors exacted a terrible price on the losers. By that, I don’t mean the Nazi officials and their “willing executioners,” who received less punishment than they deserved, but the 11 million ethnic Germans living in Central and Eastern Europe—civilians all—who were expelled from their homes and force-marched to Germany by the Red Army, with help from the Czech and Polish governments and with the approval of Roosevelt and Churchill.For anyone who cares about the Israeli/Palestinian conflict this article is a "must" read.
Historians estimate that 2 million died on the way. Around the same time, the Indian subcontinent was divided into two new countries, India and Pakistan; millions of Hindus and Muslims moved from one to the other, and hundreds of thousands died in related violence. Against this background, the West was not likely to be troubled by the exodus of a little more than half a million Palestinians after a war launched by their own leaders.