well, a couple things. if anyone's interested.
that pressure swings both ways, admittedly. pro-peace sentiment/demonstrations were a notable, if not the main, factor in pressuring Begin into making peace w/Sadat. however I reckon that 1) the settlers & their supporters have a disproportionate amount of influence & that they are stronger in their convictions than those who would oppose them, & 2) general opinion has if anything hardened considerably since the late 70s when Israel was still feeling quite strongly the aftershocks of the October War. I don't know if this will improve either - the Ashkenazim/kibbutzim/war hero elite can't dominate the country forever & as I understand it the Sephardim (as well as the Russians) are on the whole considerably more conservative.
that lack of faith in guarantees is critical. & well justified in my eyes too, given the extremely lackluster record of the UN etc. as a guarantor. there's also the question of who can credibly dealt with on the Palestinian side - that is, what Palestinian leader or group could actually enforce any agreements made on "the Palestinians".
also, a lasting peace (or at least improvement from the status quo) simply will not be imposed by American pressure. we don't have the credibility, the will, the political juice to do it. people forget that Israel/Egypt, for all the mythologizing of Camp David & Carter*, was an Israeli/Egyptian & not an American thing.
on a personal note I have to say I find the phenomenon of Americans & Europeans imposing their bullshit morality on both Israel & the Palestinians from afar to be galling in the extreme. on pragmatic grounds, alright, but whenever the moralizing, or even worse the suggestion of some kind moral authority, is introduced...dude, it makes me want to scream.
*not to undercut his enormous personal contributions & dogged, bordering on insane, determination to put an agreement through