Re: This will end up being ignored/forgotten
Israel may or may not have moved the boundaries around when they pulled out of Gaza. I've not looked into it enough to say. And obviously they maintain a no-man's land inside Gaza's territory, rather than theirs. However they actually did remove many settlers and settlements. If the only problem was borders or settlements a deal could have been struck. But that's not Hamas' only objective, and therefore settlements almost certainly isn't the main problem in Gaza. The blockade is surely a much more important issue there.
There's a big difference between Hamas and the IRA. The IRA had an achievable objective. It's unlikely that Israel is going to consent to ceasing to exist. It was possible that the UK would dump NI on the Republic and wash its hands of the whole messy problem. However, when the IRA realised they had no hope, they made a deal. Hamas still aren't even clear that they're happy with any deal that leaves Israel standing.
There are many voices within Hamas who accept they're going to have to go for a two-state solution. But I'm not sure they're a majority. And even if they are, if a significant minority of the military wing don't accept the reality that they can't win, then peace will be impossible.
There will be no peace while Israel's only roadmap to peace is the complete assimilation of Palestine within the boundaries of the state of Israel.
That's certainly true. However that isn't Israel's only road to peace. Even Netenyahu has had to publicly accept that a 2 state solution is the only way they're going to get a deal. He may not like it. He may not be honestly trying to achieve it, certainly some of his coalition partners are actively working against it. And personally I think he's a total arse, who poisoned any remaining hope of re-starting the Oslo process ten years ago.
However it's a ridiculous simplification so say that Israel wants to annex all the territory and kick the Palestinians out. Israel is a pluralist society, and the opposition parties definitely want a two-state solution. However the peace process failed on their watch, hence they got the blame, and the ones who said it couldn't work got back in. They're now showing how there is no military solution. My personal suspicion is that Israeli opinion will shift as soon as it looks like there's any realistic chance of a working peace process. But that will need the Palestinian side to be more united than they currently are.
Oslo happened because everyone was sick of the previous bloodbath. Hopefully enough blood has been spilled since to prove to the extremists that they can never 'win'. Or if not, then prove to the general population that supporting the extremists will just get them more blood. And maybe it's worth a try at peace again. But these shifts take years, because it seems that people have to be sick enough of the slaughter for the nasty compromises required to get peace to look bearable.