Of course they're not obligated to stop racism. If they don't do anything to address this issue, however, I and potentially many others will hesitate to book using Airbnb to vote with our [currency]. This is capitalism working without necessarily requiring government interference.

"Address the issue"

That doesn't mean anything. There's no issue here.

I see an societal issue that Airbnb can mitigate, and so do many of the commenters on this thread and on the article. I understand that you disagree, but some of us will gladly support alternatives that take a harder stance against what we see as injustices.