There's no singular state of humankind, any more than there is a specific "goal" to evolution. But I think Haidt is right about human nature when he calls us "groupish" (or, "part ape, part beehive").
I'm philosophically individualist, yet even that value system can't escape tribalism entirely: in practice, we'll happily form tribes that value individualism to complete against outsider tribes that don't, with no trace of contradiction or irony.
What we can strive for, and I think history has proven successful (or at least capable of being successful), is groups based on voluntary association and/or merit, and inter-group competition that is net-positive, or at least minimally destructive.