In either case, however, individuals are not in control of their feelings: their identities are a product of their group memberships, whether economic, sexual, or racial. Since the shaping economic, sexual, or racial experiences or developments vary from group to group, differing groups have no common experiential framework. With no objective standard by which to mediate their different perspectives and feelings, and with no appeal to reason possible, group balkanization and conflict must necessarily result.
I've definitely met people that are not in control, mostly children, but some adults. But I've met a lot of other people that are in control.
And why those particular groups? I get that this is how we have traditionally categorized people, but is that a historical accident or is there something to it? (there isn't anything to it)

