If your argument is based on LAW, you must bring some law to support it. If it is based on emotions, I suggest that you go and object to other people. There is an intenational law that governs deportation of "protected persons", who are non combatants, and it is called the 4th Geneva Convention. Article 49 says: "Nevertheless, the Occupying Power may undertake total or partial evacuation of a given area if the security of the population or imperative military reasons so demand. Such evacuations may not involve the displacement of protected persons outside the bounds of the occupied territory except when for material reasons it is impossible to avoid such displacement." In our case, since Jerusalem residents are free to move all over Israel, Israel might be able to claim that this endangers its population. This is why I was not sure about illegality involved. Note that the expulsion is to the West Bank, part of the occupied territory, so this poses no legal problem. In short, I doubt that Abu Tir and friends will be able to cry "war crime", and they are not doing it.
Route 1 to Jerusalem reopened to traffic as fire outside of Jerusalem continues (Haaretz)
from the article: Hamas official facing expulsion: I won't leave my ancestral home