It is 2.2 million people, a huge amount. How are people who don't want to leave going to be made to do so? The population of Gaza are already refugees who have been displaced. The population are traumatised, there are many orphans, many amputees or disabled, so they have requirements for ongoing health care. There are other reasons why it's particularly difficult for the people of Gaza to be refugees. Primarily, most nations have agreed to a 2 state solution, and it is reneging on that promise. It is better to avoid creating refugees in huge numbers in any situation, and I think it's quite possible to avoid doing this to Palestinians. As a by product we would not be destabilising cohesion in the rest of the world, which will affect us all.