Interesting theoretical storyline but the one thing that doesn’t fit is the divorce decree between 0bama Sr and Stanley Ann. Unless they actually did marry (on Maui?) before heading out to Kenya.
It is my theory that the Stanley Ann-Obama Sr relationship ended in Kenya when the couple went to get Obama Sr’s blessing from his father. It was there that either the interracial or the cultural nature of the relationship did not work for Obama Sr’s father, Hussein Onynago Obama. There must have been some real fireworks. Hussein probably threatened to disown his son. Being a Muslim, Hussein may have even contemplated a lashing for his son who showed such a disregard for his father's values.