Those who are against killing large masses of fellow human beings. Anti-war people do not support violence, because we know it is not the answer. We are smart enough to realize that you can kill people, but you can't kill the problem.
Anti-war people know that war takes away all that peace has to offer. Give peace a chance!
What keeps life interesting. Without it the human race would be a bunch of identical mindless drones.
Screw diversity. Let's just all be exactly alike in everyway. That'll be exciting!