In most case palestinian was forced to leave because without them leaving you could not create a jewish state since jews only have 9% of the land and it was disperced. The villages was not empty they was full of people as proven from zionist testimony about tentura.

The expulsion of jews from arab countries in response to israel expulsion of Palestinian was wrong and while the majoritarly was expulsed, other was forced to leave by zionist false flags and deal with between zionists and certain arab leaders like Operation Yachin.

Under international law, the forcible transfer of populations and the** destruction of property of a population** that has been forced out constitute crimes against humanity and are key elements of ethnic cleansing

Even if you believe the lie that most left willingfully . The destruction of property and preventing Palestinians to return is ethnic cleansing