How do we solve this?

I don't understand why these people hate those they don't know; I don't understand why that hate is so deep, so ingrained, that it permeates a group so vast, and fills them with desire to die by killing. I wish I did understand; I wish I could reach out and fix it all. It sincerely pains me to think about the lives wasted on hate, both the lives freely given for it and those violently taken for it. I wish we knew how to solve it. I don't think nuking them all is the answer; and I honestly don't think that rooting them out one by one will ever really be effective. Somehow it's a cultural problem, and we've got to try to understand each other, and come to the table and explain our differences and try to live in peace. I think that's a totally idealistic view of things (big surprise) and it shows my rose-colored glasses. And I think that we (Westerners, Americans, whatever) won't be able to get these groups to the table. I think it has to be an internal movement. Some sort of miraculous enlightenment. Not beyond the realm of possibility, though undoubtedly way outside the realm of likelihood. I just wish I understood.