Your missing the point. Israel isn't justifying its actions by anything other than self defence. Yes its aggressive and it must be. The consequences to Israeli civilians requires this. Israel has been on record as willing to negotiate a 2 state solution and willing to make "painful" compromises. But it is not on record indicating that it is willing to kill the state or not defend its people.
Jerusalem stabbing: One cop seriously wounded, two others suffer moderate wounds (Haaretz)
from the article: Two women would-be suicide bombers caught on way to attack