The law is not a card blanc to en masse deportation, it explicitly says, according to Haaretz (Wladek, read the damn article), that it allows deportation of those who are not residents of the WB. Gazans, foreign passport holders, etc. are considered aliens, like in any other country. It is not deportation of lawful residents, so stop the whining and read the written words, even Fayyad claims it is meant for "....Palestinians from Gaza who work and live in the West Bank...". WORK and LIVE Wladek, not lawfully reside.
from the article: Fayyad: New IDF orders threaten to empty West Bank of Palestinians