They justify abandoning their own children by looking forward to a reunification in the collective unconscious? Unacceptable.
Lelouch uses his geass on God itself. Not as a command, but simply a request.
The thought elevator collapses, and Charles disintegrates.
One month later, the emperor of Britannia is set to make a public address.
But everyone is shocked that the emperor is not Charles, but Lelouch.
Suzaku is with him. Lelouch has declared him to be Knight Zero, the knight before other knights.
Geass guarantees acknowledgement.