Old hatreds just keep on resurfacing. Is there hope? To me, no-- not in the short haul, but maybe not even in the long haul.
Just one case in point: according to the Hadith (sayings of Mohammed), once an area is under Islamic control it must remain under Islamic control. Also, there's the concept that Islam eventually will be the dominant religion in the world.
Now, do all Muslems necessarily believe that? Probably not, but the imam simply cannot ignore what's written in the Qur'an and the Hadith, and they have an obligation to teach what's taught in both.
For those in the west who are secularists or more liberal in their religious outlook, they have a hard time believing that this is what is being taught because it doesn't fit their own paradigm.
Therefore, when an organization based on Muslem teachings as they interpret them, which Hamas is doing, states that Israel must be destroyed, and we in the west tend to just pooh-pooh this all off as rhetoric and hyperbole without realizing that Hamas is being honest about what is actually they're teaching from their scriptures, there's a disconnect.
It's a manifestation of "culture conflict", whereas there's a tendency not to be that able to think like those in other cultures think. Even many Israelis sometimes have a hard time having this sink in, and I tend to think that this is also partially due to the fact that they want peace so bad that they create this false hope that peace is just around the corner if they just do "this" or "that". Sorry, but it takes two to tango, and Hamas and many in el-Fatah and other Islamic groups aren't in the mood to dance because they are bound by what the Qur'an and Hadith teach.