airbnb favor guest who gives false accusation

[Kenny275]

I am superhost .A guest wants a free cancellation the day before arrival and I denied it . He then called airbnb and complaint that I said something racism to him. My listing was suspended and got a fine.  So Airbnb believe in whatever the guest said , We host are not protected at all?

[Helen3]

What proof did Airbnb/the guest provide that you had made racist comments @Kenny275 

[Kenny275]

The email said that I asked for his race, I had no idea what proof provided, I called airbnb to ask about it but never got a reply  

I guessed no proof needed or the guest' s mouth is proof. Airbnb did not even call me about it, just an email saying this is a final decision, and asked me to read and agree the non discrimination policy to remove the suspension