AirBnB didn't rape anyone, they just set up the platform that enabled the rape, and took a cut of the money the woman paid to rent a place in which she was raped.

Imagine a taxi company that hired a driver, did background checks, who then is arrested for raping a woman in a taxi. The taxi driver makes bail. Does the taxi company at that point say "Rape is a criminal matter, and it's up to the criminal justice system to adjudicate matters like this, not us" and put him back in a taxi? If they did so, and he raped a second woman, would you argue that the taxi company had absolutely no responsibility, and that it's still the job of the criminal justice system?

Really?