Evacuation in and of itself isn’t necessarily a bad thing. The reason the Israeli call for evacuation was bad is because they were asking for a fucking miracle to happen. Evacuating that many people requires a level of logistical challenge that would be extremely difficult even for the US. Considering the IDF is cleared to kill anyone on sight, this was the plan from the beginning: make unrealistic demands, make it dangerous to leave, kill the ones that did manage to leave, and kill anyone left in Gaza. This is an ethnic cleansing of the worst sort.