What a great story.  The question that glaringly goes unaddressed is, "How did such a young, white child become so racked with guilt and self-hatred?"  Surely, this does not happen by accident.  What forces in education and media have given her these ideas, and what do they stand to gain by doing so?  Dive down that rabbit hole and maybe in  your next article you can report your findings.

It is also sadly hilarious that you reduced your daughter's rich cultural heritage to a tea ceremony.  Perhaps, in your effort to  "set the history record straight," you could inform her that while her Peruvian boyfriend's ancestors were committing human sacrifice by the thousands, your British ancestors were enjoying the Renaissance of the Elizabethan era.  Perhaps you could teach her that she comes from a tribe of creators and conquerors.  Her people had the strength, cohesion, intelligence, technology, and social organization to conquer half the world.