Yes, there are powerful rejectionist forces in both sides (who want the whole cake). But that's where the symmetry ends. The key point is: one of the sides (Israel) has much more power to implement (or at least jump start) the deadlock. The facts speak by themselves: Israel is the party that could break this deadlock, but she is still building settlements. The USA government complains but in the end does nothing, and Palestinians cannot do anything about it because they lack military, political and economical power. When will the Israeli government announce a compensation plan for settlers in "isolated" settlements (which would be in the Palestinian state on the make)? The fact that there is not even a discussion of such compensation plan proves that the Israeli Jewish side feels that it can have its cake and eat it. Really, all therapies that you may invoke are plain side games when the side wielding power is not in a hurry to negotiate. Come on ! it's not rocket science.
Israeli soldier lightly wounded after being hit by car south of Hebron (Haaretz)
from the article: Are peace talks doomed to fail before they start?