The right of return claim prevents any peace. Palestinians negotiate to 1. gain legitimacy for themselves as Palestinian representatives 2. to obtain international support - funding for Palestinians self government 3. to marginalise Israel diplomatically This until the military balance changes, or they can realise a unitary state with a Moslem majority (as a variation on the right of return). Thus even if Israel withdraws to pre 67 borders, there would no more be peace than there was pre 67. The only security in any withdrawl (still no peace), is the guarantee of a US force between the borders of Palestine and Israel and the rest of the ME - to guarantee no 1948 repeat.
Jerusalem suburb of Even Sapir evacuated as wildfire spreads (Haaretz)
from the article: Looking back in anger