Guests Robbed in Paris, No Help from Airbnb or Host, and Airbnb Removed Negative Review!

In August, my wife and I booked a “lovely” houseboat on the Seine River in Paris. The reservation indicated that there would be an access card entry and the reviews were generally positive. When we arrived, we noticed that the entire river embankment in our part of town was being used as a camp for migrants. The owner assured us that there would be strong police presence and that the area was safe. She enlisted her neighbor to keep watch over the area while she was gone. There was no access card, however, as promised. Unfortunately, the neighbor who was supposed to be keeping watch skipped town for the weekend and we were robbed in the middle of the night while sleeping. The thieves took our wedding rings, engagement rings, laptops, jewelry, cash, cards and passports. They were actually right above the hull of the ship where we were sleeping. Thereafter, we were informed by another resident that this had become quite common; i.e., there had been a rash of break-ins in this very area. We had to sit in a police station for 3.5 hours trying to tell our story in broken French. AirBnB and the houseboat owner were extremely callous and unsympathetic. Most of our items were uninsured, so we lost a decent chunk of our property, as well as our security. They have refused to reimburse us and they do not seem to realize that they had a duty (whether moral or legal) to inform us about the recent activity in the area or to take bona fide steps to secure the property. Worse yet, our negative review of the property has been removed from the AirBnB website. The owner is Marie and here is her unsecured property: https://www.airbnb.com/rooms/527140?s=CwERv8I5