Why do I see the seeds of destruction in this? It's simple. William Golding nailed it in his horrific, yet anthropologically accurate Lord of the Flies (1954). When Ralph "shares" power with Jack (of the Choirboys), at first all appears admirably peaceful.
But appeasement with a rival in a conventional cultural setting never works. Ever. At best, the one doing the "sharing" of power normally maintains an aura of détente - while holding an ever-present, unseen knife in the back of the underling rival (think Putin/Medvedev). In a setting of "come on now, smile on your brother, everybody get together, try to love one another right now" naïveté that has rejected the realism of the Church's teaching on Original Sin, sharing such power with a rival is fraught with perils and seeds of destruction (think the "feel good" presidency of the Big O).
Well, the fogs of the primitive sacred will dissipate soon enough to disillusion some if not all of the Big O's electorate. Others will gamely muster on, denying that "progress" is not happening. But put such rivals in the same arena, and pipe dream optimism won't be able to put the genie of ambition back in the bottle of naive humanism.