You are not winning me over, here.  While the Likud Party certainly has among its constituencies a fairly large number of people who would probably like to clear out the Palestinians and annex the West Bank, and while I would suspect that the "disputed territories" flim-flammery is partly designed as a way to satisfy these groups, it also seems to be part of a bargaining position.  Basically, calling them the disputed territories means they are disputed, which would allow annexation of some of the West Bank settlements.  I suppose one could say that the settlement program as a whole is a kind of slow motion ethnic cleansing, but it is not what people normally mean when they talk about "ethnic cleansing" in this context.