Shit happens, not only during wars. Yes, some palestinians were forcibly driven out by the IDF during the independence war, most fled from territories where fighting was going on. The war newer ended, just 2 states made peace with Israel. Others still want to make pieces from Israel. We have a new reality sice almost 60 years, that can't be turned b around. Similar happened to the German polupation during and after the WWII. Some were forcibly driven out, the most fled from the Red Army. Many claimed their right to return, which was never given, and this will remain so in the future. These are results of wars, that are maybe uncomfortable for many civilains, but not changeable. Nobody can build the future on past demands. One time you have to accept, that it happened, and build your future the best way you can where ever you are. Same as official Germany long time ago stopped demanding return of who ever to where ever. Id you don't want refugees - dont start wars.
Israeli troops shoot, injure Palestinian crossing Gaza border fence (Haaretz)
from the article: Barak: Israel shouldn't appease U.S. president with one year left