I told people years ago that when the technology had advanced to the point that fantasy was a far better substitute for reality, people would retreat into fantasy worlds.
It would be far, far worse than any drug addiction.
But I suspect, before we reach that point, outsiders could crash in and start to destroy the system, declaring the entire system evil. In some part of this fantasy complex, people will have to wake up and defend themselves from invasion. If their defense is successful, they can live on, but no longer be happy folks inside the dream fantasy. They may have to face both harsh reality outside and happy machine-generated fantasy inside the complex.