I had a young couple stay over just one night. They were very friendly and nice and sweet, seemingly. They loved my cats and spent more time in the common area than most guests do. That was fine with me. I was all prepared to give them a glowing review. They were packed up and ready to go at check-out time, but asked if they could have a cup of tea before they left. That was a bit annoying, but I said it was ok and we chatted in the kitchen while they drank their tea. The conversation went to where they lived and she proceeded to tell me that they really wanted to move because there are too many Indians and Pakastani people there. They wanted to live where there were more âEuropeanâ people (meaning white) with Canadian values (meaning what?) It went on and it was particularly shocking because she is from an immigrant family. Her father was born in Bangladesh! But she clarified that he is a âlight-skinnedâ Bangladeshi. And then she complained about Sikhs wearing turbans. Long and the short of it, totally racist. No racist slurs, and with a sweet face. If she had expressed any of the views on the first night I would have asked them to leave. And now I have to write a review. Airbnb doesnât tolerate racism in hosts - what about guests? I would not recommend them as guests to anyone for this express reason. I also feel like I have an obligation to call it out. I did certainly challenge her on the spot, but probably not clearly enough BUT, it would be pretty explosive to call someone a racist in a public airbnb review. Could be considered slanderous. Would certainly make it extremely difficult for her to book another place in the future, unless the host shared her views. any thoughts out there? Much appreciated.
Ah this is a cultural nightmare! There is a caste system in India and social stratification is accepted. Upward mobility is still largely an American concept. Social classes exist in many countries. I know that hindsight is 2020 but it would have been interesting to ask what she means by European people and just listen instead of jumping to any conclusions.
As for a review I think you should just stick to the facts of their visit. You donât have to agree with a guestâs views. This is a good example of why itâs a slippery slope to do too much socializing with guests.
I think I would be inclined to call Airbnb and tell them about it but since you have no proof other than your word I doubt theyâll do anything about it.
There is a private feedback to Airbnb when you review them where you can mention this as well.
Thank you for your thoughtful reply. I agree that a private response is better. I actually did ask about the âmore Europeanâ, which is when she mentioned Canadian values and âpeople like us.â Iâm going to sit with it for a while before I do anything. Thanks again.
I take it you are Canadian? Also, there are self loathing people of all kinds. Sad but true.
Canadians are like Americans only further north! 
Were they the Coopers??
Does she realize what a melting pot Canada is? There are people from ALL cultures here, and for the most part I see very little racism. Her views make her very UN-Canadian.
Yes I am Canadian. Youâre American?Just like Canadians only further south! lol. Also wondering if I can just do a thumbs down on them without getting into it? I havenât been doing airbnb that long, havenât had any real challenging issues to date.
Yeah, most Canadians would say âlolâ to that comment! They realize that Americans think of us as the 51st state. Canadians think of themselves quite differently.
Me⌠Iâm half American so I cannot really comment! 
Exactly. Racism is not a Canadian value.
On the basis of what @Maggieroni said - and group/race/caste-based discrimination is common, even acceptable in many Asian cultures such as in the Indian subcontinent.
So while what they said and the way they did is offensive by current Western norms, when you look at it this way there isnât much you can practically do, or need to.
Also, look at it like this: they were trying to make it known that they were the âgood immigrantsâ integrating/-ed into Canadian/Western values/culture â whether thatâs true or not.
The irony of course is, if they had integrated into the system of Western mores, they wouldnât say such things - and wouldnât have to say it to make their point.
So on the bright side, you can take it as a compliment that they were probably trying to find common ground with you, even if in their own blunt way.
I wouldnât mention any of this in the review.
And if you want to laugh it off, try the sketch I posted.
EDIT:
Disclaimer:
By saying the above, I am not condoning racism or discrimination of any kind.
Yes, you can click on the thumbs down.
thank you very much. Wise words. I did check out the sketch, thanks for that. 
but do I then have to clarify why I clicked on the thumbs down?
I understand. Thanks.
Iâve never clicked the thumbs down so I donât know for certain, but I donât believe you have to clarify. In any event you certainly wouldnât want these people to book with you again and racism is a legitimate reason for not wanting a guest back.
No you donât have to.
But going by what we discussed, I would think a bit before doing a thumbs-down. If you really want to do anything about it, maybe write to them privately politely pointing out that such things cannot be said. Or send them a link to something that explains this well.
When I considered immigrating to Canada I remember the official literature saying âunlike the US, Canada is not a melting pot, rather we are a mosaic of cultures and we allow all cultures to come in and flourish in Canada.â
Paradoxically, by that very definition, Canada also allows un-Canadian expression of racial/ethnic bias if thatâs an integral part of a culture!
Why would the original poster have to think a bit? There is zero doubt in his/her mind that he/she wouldnât host this guest again.
True. I would not have them back. Nor would I recommend them to anyone else. But I think I will not do anything hastily.
Interesting take, but Iâm not sure I would agree with you. There are many examples of norms from other cultures that are not legal in Canada.