You’re right, they probably will never indict the Kenyan for anything. But they can rip open this can of worms and utterly shred his legacy to the point where he will have to leave the U.S. and accept being the most despised president in history.
True, Now, Here!
There is no reason to indict him.
Grant the Egyptian request to extradite him for his part in the failed revolution, then act shocked and outraged when they hang him naked like Saddam.