1. Rock is dead
2. Rock is dead and there is nothing more to add to it
3. A lot of rock legends already added everything they could to the genre.
4. Adding anything to the rock genre is almost entirely impossible. If anything is added to it then it has most likely been done before.
5. Since nothing can be added anymore, rock is entirely dead.
6. A lot of the rock legends that have come and gone have already added to rock as a whole, so almost everything has been done. Nothing can be added anymore otherwise it is just being repeated. So rock is genuinely dead.
Updated Hypothesis
During the “golden era” of rock, artists used their music as a vehicle for rebellion and social reform, whereas rock now lacks in those categories with fewer artists using their platforms for societal reformation and change.