It'll start getting really interesting once someone inevitably finds Airbnb users who've publicly proclaimed their hatred for whites, or men, or heterosexuals,

It'll start getting really interesting once someone inevitably finds Airbnb users who've publicly proclaimed their hatred for whites, or men, or heterosexuals, or all of the above - because of course that's just as much a violation of the ToS but they'd basically be seen as alt-right supporters if they banned anyone for that. Definitely lose-lose.