Communism!
Just kidding....
Anyways...*is looking over topic so that he can contribute in a way other than spam* I think that I agree with Rachel in the fact that the biggest one is predjudice. I just moved from a very bad part of town (yes the ghetto of Ohio....

) and right after I left, they had a riot at their high school because they had their very first black homecoming queen. Being biracial, I could not side with anyone (except for my best friend, Tiger [not the golf player] who is black), but I think that if prejudice (I'm gonna spell that differently everytime....) were abolished all together, we would have a hard time disgingushing good from evil. So in a way, it's needed, but I think it would kinda be better if we didn't have it.
And if anyone says "can't live with it, can't live without it", I'm gonna pop a cap in his...it would probably be a little more intimidating if I had access to firearms, first.