He's made a massively more successful career out of (rock) music than most in here will ever achieve...
... than
anyone here will
ever achieve.
If you haven't already achieved that level of success, you never will. It's too late.
Rock, as a vital commercial proposition, is dead.
That ship has sailed.
The legacy acts will do absolutely fine, until the orginal band members, or their audience dies - whichever happens first.
New rock acts are in the unfortunate situation, that it's no longer a sustainability lucrative genre for large labels, with the finances to drive the necessary market penetration, to invest in.
That means it's only going to be a local level hobby, or a sideline, supported by patrons, and grass roots networks.
None of that means there isn't still plenty of great, new rock music being made, or that rock music fans should give up the ghost, and get with the times.
It just means that in the current musical climate, there are not going to be any new true rockstars, or truly original rock bands that are household names.
Eventually there will be a new musical revolution, and whatever the instrumentation, or genre, their popularity will be determined by a refusal to adhere to algorithmic trends (or at least an attempt to outpace / outfox them for as long as possible).