I think it's a very common human trope to believe that we are in end-times. I imagine the overlap between the people that believe that AI will end humanity and those that believed climate change will end humanity 10 years ago is pretty significant. Before that it was people that believed in the rapture.

Sure one of these things could technically end humanity within our lifetimes. But the fact that the end of humanity has been predicted for as long as humans have been around is telling.