"Either way, the case is an ideal opportunity for the authorities to flag that people may want to reconsider making money from renting out their rooms or properties if they are racist."
Or they may want to consider being honest. She should have simply said the plumbing broke.
We must accept other cultures and their belief systems – and if you believe differently then you’ll have to change. She is a bad person for thinking someone is a bad person, her lack of acceptance was not acceptable.