I've never understood how so many people can reach such strong conclusions regarding the conflict in the middle east, it just seems so complicated to me.

I also think it's a mistake to let one's tribe dictate what side they take on a matter as deep and intricate as this, whether that be political persuasion or even football team.  I feel this happens with other issues too which aren't simply left or right in nature, but still have lefties and right wingers falling in line with their tribe.