Ethnic cleansing is what happened with Jews in Gaza and it is the ambition of the West Bank as well. When you start a war to gain everything against one ethnic group, you have to look at who initiated those wars. The Arab-Israel war, initiated by collective Arabs Countries that broke out in 1948 has not yet ended. The outcome produced Arab refugees, just like Hamas initiating this current war will probably produce the same amount of displaced Arabs if Hamas does not surrender in a timely manner.