Blindly stating that all of the west bank is rightfully Palestinian land is incorrect. Do it based on major population centres. Unfortunately, though, when you look at a map, that will still mean a Palestinian country that puckers out to the west dangerously close to Israel's coast.
Police disperse hundreds in brawl in Kafr Manda, northern Israel (Haaretz)
from the article: G8 leaders omit mention of 1967 borders in Middle East statement