You really need to educate yourself on this topic then. The leadership of the Palis have made clear they will never make peace with Israel under any conditions.
They have no legitimate grievances. Their only grievance is Israel exists. That is not a legitimate grievance
The Greater Israel movement in no way excuses the Greater Palestine movement to abolish the state of Israel “from the river to the sea.” Likewise, the Greater Palestine movement can not excuse Greater Israel. I am not playing a moral equivalency game here. Far better to build a house where it does not belong than blow up a cafe or a bus. But it is not necessary for the Israeli settler movement to be as morally bad as Hamas or Islamic Jihad for the movement to still be morally bad.
In a perfect world, both “greater” movement would be defeated simultaneously. But the world is far from perfect, as it always has been, and Palestinian society is more dysfunctional and corrupt than Israeli society. So the Greater Israel movement is being defeated before the Greater Palestine movement, if only because the intifada has been largely walled off from Israel proper. (Critics of Israel’s security fence should acknowledge that it is the very thing that makes Israeli withdrawal even possible.)
I think some, though not all of the West Bank settlements have their issues as well and much of it is caught up in Israeli politics. See this article.
IMO, Israel isn't perfect and isn't 100% right. They're our friends and we should treat them as such, but good friends sometimes have to give tough and unpleasant advice. Just my $0.02.