If they do, then they're going to have significant discrimination problems as long as people are discriminatory, i.e., basically forever. People can improve ov

If they do, then they're going to have significant discrimination problems as long as people are discriminatory, i.e., basically forever. People can improve over time if they're nudged. People used to think slavery was ok, and attitudes changed. The majority used to think gay marriage should be banned, and attitudes changed. Small groups need to take a stand, and change big groups. To take a moral stand will ultimately cost Airbnb in the short term, so they should be lauded and supported for it. (Some people may choose to not open up their homes if they aren't allowed to discriminate)