Hi @Aaron774 ,
I am sorry to hear about your experience with the guest and understand you're frustrated.
You're not alone. I've over a dozen untrue, unfair and revenge review.
Obviously, this is an unfair review!
The guest left a 1 * star review for not experience hospitality.
Airbnb reviews system? It out of your hand!
Letting you know that reviews are the backbone of Airbnb's community and in order to maintain that structure Airbnb have guidelines in place that ensure all reviews are fair, honest and relevant to the travel and experience.
Airbnb's default position is not to delete, censor, or edit reviews.
With that being said, in rare cases like this, Airbnb may remove a review only if it violates the review guidelines.
Nevertheless, recently @Ross648 success to remove the negative review,
https://community.withairbnb.com/t5/Hosting/Negative-Review-removed-when-guest-cancelled-after-check...
You may consider contacting the Airbnb Support Help Team,
As a link below,
How do I remove a review I disagree with?
https://www.airbnb.com/help/article/32/can-i-remove-or-respond-to-a-review-i-disagree-with
Review standards system?
It doesn't make sense.
Good Luck!