It’s catastrophic because people have stopped traveling there. I went to Barcelona a week after a terrorist drove a van down the Ramblas, killing 13 people. That was seen as a random act that didn’t affect tourism. That’s not the case with Paris. I wouldn’t go there for free and people from all over the world are thinking the same thing.
I’d go to Paris again without hesitation. It’s a very easy city to visit. The Metro system is fantastic. Everything is just a short walk from a stop -except the Eiffel tower. You need to take a taxi. I spent three days in the Louvre and felt rushed. Other places are nearly as great. It seemed every street had bistros on it. My favorite meal was a sort of Caprese salad and beer or wine. But hotels are relatively expensive and the 3rd world immigrants are generally a bad influence all around.